Update workflows with version action

Author: Jonathan Wenger

.github/workflows/gem-push.yml

@@ -7,7 +7,12 @@ on:
 jobs:
   build:
     name: Build + Publish
-    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest]
+        ruby: ["2.7"]
+    runs-on: ${{ matrix.os }}
     permissions:
       contents: read
       packages: write
@@ -21,10 +26,11 @@ jobs:
         run: |
           echo $VERSION
           echo ${{ env.VERSION }}
-      - name: Set up Ruby 2.6
-        uses: actions/setup-ruby@v1
+      - name: Set up Ruby Versions
+        uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 2.6.x
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
 
       - name: Retrieve bearer token
         id: get_bearer_token

.github/workflows/test.yml

@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - name: Set up Ruby 2.6
+      - name: Set up Ruby Versions
         uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}