Build docker image for tags too

Author: abretaud

.github/workflows/dockerimage.yml

@@ -43,7 +43,7 @@ jobs:
 
   publish:
     runs-on: ubuntu-latest
-    if: github.ref == 'refs/heads/master'
+    if: github.ref == 'refs/heads/master' || startsWith(github.event.ref, 'refs/tags')
     steps:
     - uses: actions/checkout@v4