Edited git workflow

Author: yanik-recke

.github/workflows/build.yml

@@ -33,7 +33,7 @@ jobs:
           context: .
           file: ./Dockerfile
           push: true
-          tags: |
+          tags:
 #             Only use the tag name (e.g., v1.0.0)
             ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}:${{ github.ref_name }}
 #             ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}:latest