add env variables for CI

Author: dhruvCW

.github/workflows/ci.yml

@@ -35,11 +35,12 @@ jobs:
     - name: Check out branch
       uses: actions/checkout@v3
     - name: Set up Ruby
+      env:
+        GRAPE_VERSION: ${{ matrix.grape-version }}
+        MODEL_PARSER: ${{ matrix.model-parser }}
       uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{ matrix.ruby-version }}
-        GRAPE_VERSION: ${{ matrix.grape-version }}
-        MODEL_PARSER: ${{ matrix.model-parser }}
         bundler-cache: true
     - name: Run rspec rest of the suite
       run: bundle exec rspec