Refactor Dockerfile and workflow to include version pattern for release branches

Author: hummerichsander

.github/workflows/publish_image.yaml

@@ -37,8 +37,7 @@ jobs:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           tags: |
             type=ref,event=branch,pattern=release/v(?<version>\d+\.\d+\.\d+),group=version
-            type=ref,event=branch,pattern=release/latest,group=latest
-
+            type=ref,event=branch,pattern=release/v(?<version>latest),group=version
 
       - name: Build and push Docker image
         id: push