Merge pull request #20 from weierophinney/hotfix/workflow-expression-syntax-join

Fix tag concatenation in build-and-push-containers workflow input

Author: weierophinney

.github/workflows/build-and-push-containers.yml

@@ -41,4 +41,4 @@ jobs:
           file: ./Dockerfile
           platforms: linux/amd64
           push: true
-          tags: ${{ join(fromJSON(steps.tags.outputs.tags), "\n") }}
+          tags: ${{ join(fromJSON(steps.tags.outputs.tags), ',') }}