ci: update docker-compose artifact path

Adjusts the artifact upload path in the backend workflow to reflect the relocation of the deployment manifest to the manifest/deploy directory.

Author: KutsunaSubaRya

.github/workflows/backend.yml

@@ -69,7 +69,7 @@ jobs:
           name: backend-artifacts
           path: |
             tmp/backend.tar
-            compose.yaml
+            manifest/deploy/docker-compose.yaml
           retention-days: 1
 
   deploy: