ci.yml in cqm-validators-4.0.0

- old
+ new

@@ -2,20 +2,19 @@
 on:
   pull_request:
     branches:
       - master
       - cqm_validators_2_x
-      - cqm_validators_3_x
 
 jobs:
   build:
 
     runs-on: ubuntu-latest
 
     strategy:
       matrix:
-        ruby-version: [2.6, 2.7.2]
+        ruby-version: [2.6, 2.5]
         mongodb-version: [4.0.18, 4.4]
 
     steps:
     - uses: actions/checkout@v2
     - name: Use Ruby ${{ matrix.ruby-version }}
@@ -31,6 +30,6 @@
     - name: Run overcommit
       run: |
         bundle exec overcommit --sign
         bundle exec overcommit --run
     - name: Run tests
-      run: bundle exec rake test
\ No newline at end of file
+      run: bundle exec rake test