Update workflow

Signed-off-by: Alberto Tudela <[email protected]>

.github/workflows/docker_image.yml

@@ -3,23 +3,19 @@ on:
   workflow_dispatch:
   workflow_run:
     workflows: ["Build"]
-    branches:
-      - main
-      - humble
+    branches: [main, humble]
     types:
       - completed
 
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
 jobs:
   docker-image:
     runs-on: ubuntu-latest
     if: ${{ github.event.workflow_run.conclusion == 'success' }}
     steps:
       - name: Checkout
         uses: actions/[email protected]
+        with:
+          ref: ${{ github.event.workflow_run.head_branch }}
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta