ci.yml in cqm-models-4.1.0

- old
+ new

@@ -10,10 +10,10 @@
 
     runs-on: ubuntu-latest
 
     strategy:
       matrix:
-        ruby-version: [2.5]
+        ruby-version: [2.6, 2.7]
         mongodb-version: [4.0.18, 4.4]
         node-version: [12.x, 14.x]
 
     steps:
     - uses: actions/checkout@v2