Remove conditional check for latest Docker tag

- Remove is_default_branch condition
- Always apply latest tag

Author: danielaskdd

.github/workflows/docker-publish.yml

@@ -48,7 +48,7 @@ jobs:
           images: ghcr.io/${{ github.repository }}
           tags: |
             type=raw,value=${{ steps.get_tag.outputs.tag }}
-            type=raw,value=latest,enable={{is_default_branch}}
+            type=raw,value=latest
 
       - name: Build and push Docker image
         uses: docker/build-push-action@v5