Try without cache cleanup

.github/workflows/integ-test-cache-cleanup.yml

@@ -40,6 +40,7 @@ jobs:
       uses: ./setup-gradle
       with:
         cache-read-only: false # For testing, allow writing cache entries on non-default branches
+        cache-cleanup: 'never'
     - name: Build with 3.1
       working-directory: .github/workflow-samples/cache-cleanup
       run: ./gradlew --no-daemon --build-cache -Dcommons_math3_version="3.1" build