Merge pull request #9024 from mhashizume/PUP-11376/7.x/rubocop

(PUP-11376) Updates RuboCop

Author: joshcooper

.github/workflows/checks.yaml

@@ -16,9 +16,9 @@ jobs:
     strategy:
       matrix:
         cfg:
-          - {check: rubocop, os: ubuntu-latest, ruby: 2.5}
-          - {check: commits, os: ubuntu-latest, ruby: 2.5}
-          - {check: warnings, os: ubuntu-latest, ruby: 2.5}
+          - {check: rubocop, os: ubuntu-latest, ruby: '2.7'}
+          - {check: commits, os: ubuntu-latest, ruby: '2.7'}
+          - {check: warnings, os: ubuntu-latest, ruby: '2.7'}
 
     runs-on: ${{ matrix.cfg.os }}
     steps: