fix: Set correct Docker build context for backup container publish jobs

Author: josecelano

.github/workflows/backup-container.yaml

@@ -165,7 +165,7 @@ jobs:
       - name: Build and Push
         uses: docker/build-push-action@v6
         with:
-          context: .
+          context: ./docker/backup
           file: ./docker/backup/Dockerfile
           target: production
           push: true
@@ -209,7 +209,7 @@ jobs:
       - name: Build and Push
         uses: docker/build-push-action@v6
         with:
-          context: .
+          context: ./docker/backup
           file: ./docker/backup/Dockerfile
           target: production
           push: true