rspec.yml in crono_trigger-0.7.1

- old
+ new

@@ -10,9 +10,12 @@
 
     runs-on: ubuntu-latest
     strategy:
       matrix:
         ruby-version: ['2.7', '3.0', '3.1']
+        gemfile: ["Gemfile", "gemfiles/activerecord-61.gemfile", "gemfiles/activerecord-70.gemfile", "gemfiles/activerecord-71.gemfile"]
+    env:
+      BUNDLE_GEMFILE: ${{ matrix.gemfile }}
 
     steps:
     - uses: actions/checkout@v2
     - name: Set up Ruby
     # To automatically get bug fixes and new Ruby versions for ruby/setup-ruby,