Bump ubuntu version in verify.yml

Author: jheysel-r7

.github/workflows/verify.yml

@@ -54,7 +54,7 @@ jobs:
           - '~> 7.0.0'
           - '~> 7.1.0'
         os:
-          - ubuntu-20.04
+          - ubuntu-22.04
           - ubuntu-latest
         exclude:
           - { os: ubuntu-latest, ruby: '2.7' }