9 files changed, 123 insertions, 8 deletions
diff --git a/.github/licensed/bundler/bundler.dep.yml b/.github/licensed/bundler/bundler.dep.yml
index eff79f9..6376d61 100644
--- a/.github/licensed/bundler/bundler.dep.yml
+++ b/.github/licensed/bundler/bundler.dep.yml
@@ -1,6 +1,6 @@
 ---
 name: bundler
-version: 2.1.4
+version: 2.2.3
 type: bundler
 summary: The best way to manage your application's dependencies
 homepage: https://bundler.io
@@ -31,5 +31,5 @@ licenses:
     OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
     THE SOFTWARE.
 - sources: README.md
-  text: Bundler is available under an [MIT License](https://github.com/bundler/bundler/blob/master/LICENSE.md).
+  text: Bundler is available under an [MIT License](https://github.com/rubygems/rubygems/blob/master/bundler/LICENSE.md).
 notices: []
diff --git a/.github/licensed/bundler/net-hippie.dep.yml b/.github/licensed/bundler/net-hippie.dep.yml
index 4c02d9e..ff4a312 100644
--- a/.github/licensed/bundler/net-hippie.dep.yml
+++ b/.github/licensed/bundler/net-hippie.dep.yml
@@ -1,6 +1,6 @@
 ---
 name: net-hippie
-version: 1.0.1
+version: 1.1.0
 type: bundler
 summary: net/http for hippies. ☮️
 homepage: https://github.com/mokhan/net-hippie/
diff --git a/.github/licensed/bundler/oj.dep.yml b/.github/licensed/bundler/oj.dep.yml
index 8444d19..69c6fb7 100644
--- a/.github/licensed/bundler/oj.dep.yml
+++ b/.github/licensed/bundler/oj.dep.yml
@@ -1,6 +1,6 @@
 ---
 name: oj
-version: 3.10.16
+version: 3.10.18
 type: bundler
 summary: A fast JSON parser and serializer.
 homepage: http://www.ohler.com/oj
diff --git a/.github/licensed/bundler/public_suffix.dep.yml b/.github/licensed/bundler/public_suffix.dep.yml
index ad61a27..cdbedaf 100644
--- a/.github/licensed/bundler/public_suffix.dep.yml
+++ b/.github/licensed/bundler/public_suffix.dep.yml
@@ -1,6 +1,6 @@
 ---
 name: public_suffix
-version: 4.0.5
+version: 4.0.6
 type: bundler
 summary: Domain name parser based on the Public Suffix List.
 homepage: https://simonecarletti.com/code/publicsuffix-ruby
diff --git a/.github/licensed/bundler/rbtree3.dep.yml b/.github/licensed/bundler/rbtree3.dep.yml
new file mode 100644
index 0000000..9a7fd3b
--- /dev/null
+++ b/.github/licensed/bundler/rbtree3.dep.yml
@@ -0,0 +1,42 @@
+---
+name: rbtree3
+version: 0.6.0
+type: bundler
+summary: A RBTree is a sorted associative collection that is implemented with a Red-Black
+  Tree.
+homepage: https://github.com/kyrylo/rbtree3
+license: mit
+licenses:
+- sources: LICENSE
+  text: |
+    Copyright (c) 2002-2004, 2007, 2009 OZAWA Takuma
+
+    Permission is hereby granted, free of charge, to any person
+    obtaining a copy of this software and associated documentation
+    files (the "Software"), to deal in the Software without
+    restriction, including without limitation the rights to use,
+    copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following
+    conditions:
+
+    The above copyright notice and this permission notice shall be
+    included in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+    OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+    NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+    HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+    WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+    OTHER DEALINGS IN THE SOFTWARE.
+- sources: README
+  text: |-
+    MIT License. Copyright (c) 2002-2004, 2007, 2009 OZAWA Takuma.
+
+    dict.c and dict.h are modified copies that are originally in Kazlib
+    written by Kaz Kylheku. Copyright is held by Kaz Kylheku, see dict.c
+    and dict.h for the license. The web page of Kazlib is at
+    ((<URL:http://users.footprints.net/~kaz/kazlib.html>)).
+notices: []
diff --git a/.github/licensed/bundler/set.dep.yml b/.github/licensed/bundler/set.dep.yml
new file mode 100644
index 0000000..994d103
--- /dev/null
+++ b/.github/licensed/bundler/set.dep.yml
@@ -0,0 +1,35 @@
+---
+name: set
+version: 1.0.1
+type: bundler
+summary: Provides a class to deal with collections of unordered, unique values
+homepage: https://github.com/ruby/set
+license: bsd-2-clause
+licenses:
+- sources: Auto-generated BSD-2-Clause license text
+  text: |
+    BSD 2-Clause License
+
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+
+    1. Redistributions of source code must retain the above copyright notice, this
+       list of conditions and the following disclaimer.
+
+    2. Redistributions in binary form must reproduce the above copyright notice,
+       this list of conditions and the following disclaimer in the documentation
+       and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+    SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+    CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+    OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+notices: []
diff --git a/.github/licensed/bundler/sorted_set.dep.yml b/.github/licensed/bundler/sorted_set.dep.yml
new file mode 100644
index 0000000..24fc3a7
--- /dev/null
+++ b/.github/licensed/bundler/sorted_set.dep.yml
@@ -0,0 +1,38 @@
+---
+name: sorted_set
+version: 1.0.2
+type: bundler
+summary: Implements a variant of Set whose elements are sorted in ascending order
+homepage: https://github.com/knu/sorted_set
+license: other
+licenses:
+- sources: LICENSE.txt
+  text: |
+    Copyright (c) 2002-2020 Akinori MUSHA
+
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+    OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+    OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+    SUCH DAMAGE.
+- sources: README.md
+  text: The gem is available as open source under either the terms of the [2-Clause
+    BSD License](https://opensource.org/licenses/BSD-2-Clause).
+notices: []
diff --git a/.github/licensed/bundler/zeitwerk.dep.yml b/.github/licensed/bundler/zeitwerk.dep.yml
index 18b2653..9483ca6 100644
--- a/.github/licensed/bundler/zeitwerk.dep.yml
+++ b/.github/licensed/bundler/zeitwerk.dep.yml
@@ -1,6 +1,6 @@
 ---
 name: zeitwerk
-version: 2.4.1
+version: 2.4.2
 type: bundler
 summary: Efficient and thread-safe constant autoloader
 homepage: https://github.com/fxn/zeitwerk
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 60cfe6d..92d7955 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,14 +5,14 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby: [ '2.5', '2.6', '2.7' ]
+        ruby: [ '2.5', '2.6', '2.7', '3.0' ]
     name: RSpec Ruby ${{ matrix.ruby }}
     steps:
       - uses: actions/checkout@v2
         with:
           lfs: true
           submodules: recursive
-      - uses: actions/setup-ruby@v1
+      - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}
       - name: setup