Update backend-publish-docker.yml

Author: invis-bitfly

.github/workflows/backend-publish-docker.yml

@@ -10,6 +10,8 @@ on:
     branches:
       - main
       - staging
+  workflow_dispatch:
+
 
 # Defines two custom environment variables for the workflow. These are used for the Container registry domain, and a name for the Docker image that this workflow builds.
 env: