Test with GCC 15

Author: gschlager

.github/workflows/test-gcc15.yml

@@ -34,11 +34,13 @@ jobs:
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{matrix.ruby}}
-          bundler-cache: true
+          bundler-cache: false
 
       - name: Print GCC version
         run: gcc --version
 
+      - run: bundle install
+
       - name: Compile C-extension
         run: bundle exec rake compile