exclude ruby 3.1 + Rails 8 combo

Rails 8 requires 3.2

Author: argvniyx-enroute

.github/workflows/ci.yml

@@ -17,6 +17,9 @@ jobs:
           - gemfiles/rails_7_1.gemfile
           - gemfiles/rails_7_2.gemfile
           - gemfiles/rails_8_0.gemfile
+        exclude:
+          - ruby: "3.1"
+          - gemfile: gemfiles/rails_8_0.gemfile
     name: Ruby ${{ matrix.ruby }}, ${{ matrix.gemfile }}
     steps:
       - uses: technote-space/auto-cancel-redundant-job@v1