Drop broken ruby 3.0 tests and add ruby 3.3 to CI

Author: ntkme

.github/workflows/ci.yml

@@ -9,6 +9,7 @@ jobs:
           - "3.0"
           - "3.1"
           - "3.2"
+          - "3.3"
         gemfile:
           - Gemfile
           - gemfiles/rails_7_0_propshaft.gemfile
@@ -17,6 +18,11 @@ jobs:
           - gemfiles/rails_7_0_sprockets.gemfile
           - gemfiles/rails_7_1_sprockets.gemfile
           - gemfiles/rails_main_sprockets.gemfile
+        exclude:
+          - ruby-version: "3.0"
+            gemfile: gemfiles/rails_main_propshaft.gemfile
+          - ruby-version: "3.0"
+            gemfile: gemfiles/rails_main_sprockets.gemfile
         continue-on-error: [ false ]
 
     name: ${{ format('Tests (Ruby {0}, {1})', matrix.ruby-version, matrix.gemfile) }}