fix for namespace change

Author: jclausen

.github/workflows/tests.yml

@@ -84,7 +84,7 @@ jobs:
           curl http://127.0.0.1:60299
 
       # Startup Fake SMTP
-      - uses: isbang/compose-action@v2
+      - uses: hoverkraft-tech/compose-action@v2
         with:
           compose-file: './test-harness/tests/resources/docker-compose.yml'