Fix Docker tag prefix to use github.ref_name

Author: abeckDev

.github/workflows/docker-publish.yml

@@ -40,7 +40,7 @@ jobs:
           tags: |
             type=ref,event=branch
             type=ref,event=pr
-            type=sha,prefix={{branch}}-
+            type=sha,prefix=${{ github.ref_name }}-
             type=semver,pattern={{version}}
             type=semver,pattern={{major}}.{{minor}}
             type=raw,value=latest,enable={{is_default_branch}}