Run CI against grape 2.1.x and 2.2.x

Author: padde

.github/workflows/ci.yml

@@ -119,6 +119,70 @@ jobs:
         bundle update
         bundle exec rspec
 
+  grape-21:
+    runs-on: ubuntu-latest
+    needs: ['rubocop']
+    env:
+      GRAPE_VERSION: '2.1.3'
+    strategy:
+      matrix:
+        ruby-version: ['3.0', '3.1', '3.2', '3.3', 'head']
+    steps:
+    - name: Check out branch
+      uses: actions/checkout@v4
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby-version }}
+    - name: Run rspec wo model parser
+      run: |
+        bundle update
+        bundle exec rspec
+    - name: Run rspec w entity parser
+      env:
+        MODEL_PARSER: grape-swagger-entity
+      run: |
+        bundle update
+        bundle exec rspec
+    - name: Run rspec w representable parser
+      env:
+        MODEL_PARSER: grape-swagger-representable
+      run: |
+        bundle update
+        bundle exec rspec
+
+  grape-22:
+    runs-on: ubuntu-latest
+    needs: ['rubocop']
+    env:
+      GRAPE_VERSION: '2.2.0'
+    strategy:
+      matrix:
+        ruby-version: ['3.0', '3.1', '3.2', '3.3', 'head']
+    steps:
+    - name: Check out branch
+      uses: actions/checkout@v4
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby-version }}
+    - name: Run rspec wo model parser
+      run: |
+        bundle update
+        bundle exec rspec
+    - name: Run rspec w entity parser
+      env:
+        MODEL_PARSER: grape-swagger-entity
+      run: |
+        bundle update
+        bundle exec rspec
+    - name: Run rspec w representable parser
+      env:
+        MODEL_PARSER: grape-swagger-representable
+      run: |
+        bundle update
+        bundle exec rspec
+
   grape-HEAD:
     runs-on: ubuntu-latest
     needs: ['rubocop']