Add event tag to GH actions metadata action

Author: guillesanz21

.github/workflows/publish-frontend-image.yml

@@ -39,6 +39,7 @@ jobs:
           tags: |
             type=ref,event=branch
             type=ref,event=pr
+            type=ref,event=tag
             type=semver,pattern={{version}}
             type=semver,pattern={{major}}.{{minor}}
             type=semver,pattern={{major}}