chore(test): Use branch to source compile rockcraft & charmcraft for …

…integration tests

.github/workflows/integration_test.yaml

@@ -12,6 +12,8 @@ jobs:
     secrets: inherit
     with:
       extra-arguments: -x --localstack-address 172.17.0.1
+      charmcraft-repository: https://github.com/alithethird/charmcraft
+      charmcraft-ref: flask-async-worker
       pre-run-script: localstack-installation.sh
       charmcraft-channel: latest/edge
       modules: '["test_charm.py", "test_cos.py", "test_database.py", "test_db_migration.py", "test_django.py", "test_django_integrations.py", "test_fastapi.py", "test_go.py", "test_integrations.py", "test_proxy.py", "test_workers.py"]'