chore(ci): rubocop now targets 3.1, add 3.4.0-preview1 as experimental

Author: ElMassimo

.github/workflows/rubocop.yml

@@ -10,7 +10,7 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         ruby: [
-          2.7
+          3.1
         ]
 
     steps:

.github/workflows/ruby.yml

@@ -27,6 +27,10 @@ jobs:
             os: ubuntu-latest
             gemfile: Gemfile-rails-edge
             experimental: true
+          - ruby: "3.4.0-preview1"
+            os: ubuntu-latest
+            gemfile: Gemfile-rails-edge
+            experimental: true
 
     env: # $BUNDLE_GEMFILE must be set at the job level, so it is set for all steps
       BUNDLE_GEMFILE: ${{ github.workspace }}/gemfiles/${{ matrix.gemfile }}