Add support for Ruby 3 (#178)

.github/workflows/ci.yml

@@ -9,21 +9,22 @@ on:
 jobs:
   test:
     runs-on: ubuntu-latest
-    container: ${{matrix.image}}
     strategy:
       fail-fast: false
       matrix:
         image:
-          - ruby:2.5
-          - ruby:2.6
-          - ruby:2.7
+          - 2.6
+          - 2.7
+          - 3.0
           - jruby
-        include:
-          - image: ruby:rc
-            continue-on-error: true
+          - head
     steps:
       - uses: actions/checkout@v2
       - name: Set up Ruby
-        run: gem install -g
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.image }}
       - name: Run tests
-        run: rake
+        run: |
+          gem install -g
+          rake

.travis.yml

@@ -3,4 +3,5 @@ rvm:
   - 2.5
   - 2.6
   - 2.7
+  - 3.0
   - jruby

CHANGELOG.md

@@ -1,6 +1,7 @@
 ## 0.11.9 (Next)
 
 ### Features
+  * Add support for Ruby 3.0. \[[#178](https://github.com/kslazarev/numbers_and_words/pull/178)\]
   * Your contribution here.
 
 ## 0.11.8 (June 6, 2020)

lib/numbers_and_words/helper_classes/figures_array.rb

@@ -4,7 +4,7 @@
 
 module NumbersAndWords
   class FiguresArray < Array
-    include ArrayExtensions::Helpers
+    Array.include ArrayExtensions::Helpers
 
     def to_words(options = {})
       local_language { Strategies.figures_converter.new(self, options).run }