Trigger workflow on git push

.github/workflows/release.yml

@@ -3,7 +3,9 @@ name: Create and publish a Docker image
 
 # Configures this workflow to run every time a change is pushed to the branch called `release`.
 on:
-  workflow_dispatch:
+  push:
+    branches:
+      - main
 
 # 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: