Update dependencies

Requires Ruby 2.7+

.github/workflows/ruby.yml

@@ -11,13 +11,11 @@ permissions:
 
 jobs:
   test:
-
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: ['2.5', '2.6', '2.7']
+        ruby-version: ['2.7', '3.0', '3.1']
         redis-version: [4, 5, 6]
-
     steps:
     - uses: actions/checkout@v3
     - name: Set up Ruby