Improve automated tagging

Author: martenrichter

.github/workflows/docker-publish.yml

@@ -59,6 +59,12 @@ jobs:
         uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=sha
 
       # Build and push Docker image with Buildx (don't push on PR)
       # https://github.com/docker/build-push-action