Update tests and linting workflow

.github/workflows/tests.yml

@@ -11,18 +11,18 @@ on:
 jobs:
   unit_tests:
     name: Unit Tests
-    if: "contains(github.event.commits[0].message, '[ci skip]') == false"
+    if: ${{ ! contains(github.event.head_commit.message, '[ci skip]') }}
     strategy:
       fail-fast: false
       matrix:
         os:
           - macos
           - ubuntu
         ruby:
-          - 3.0
-          - 3.1
-          - 3.2
-          - 3.3
+          - '3.0'
+          - '3.1'
+          - '3.2'
+          - '3.3'
         allow_failures:
           - false
     env:
@@ -32,7 +32,7 @@ jobs:
     continue-on-error: ${{ endsWith(matrix.ruby, 'head') || matrix.ruby == 'debug' }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
         with:
@@ -41,20 +41,20 @@ jobs:
       - name: Test
         run: bundle exec rake spec || $ALLOW_FAILURES
 
+
   lint:
     name: Linting
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.2
+          ruby-version: '3.2'
           bundler-cache: true
       - name: Install dependencies
-        run: |
-          bundle install
+        run: bundle install
       - name: Lint Ruby
         run: bundle exec standardrb
       - name: Lint JSON