Update Tag

Author: lindluni

.github/workflows/publish.yml

@@ -16,6 +16,9 @@ jobs:
     steps:
       - name: Checkout Code
         uses: actions/checkout@v2
+      - name: Parse Tag
+        id: vars
+        run: echo ::set-output name=tag::${GITHUB_REF#refs/*/}
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v1
         with:
@@ -27,4 +30,4 @@ jobs:
         with:
           push: true
           tags: >-
-            ghcr.io/${{ github.repository }}:${{ github.ref }}
+            ghcr.io/${{ github.repository }}:${{ steps.vars.outputs.tag }}