fix: Tagging manifests does not work

.gitea/workflows/docker-kubernetes.yaml

@@ -104,7 +104,7 @@ jobs:
             $(echo "${{ steps.meta.outputs.labels }}" | sed -e 's/^/-a /')
 
           flux tag artifact oci://${{ env.OCI_REPO }}/manifests:${{ gitea.head_ref || gitea.ref_name }} \
-            $(echo "${{ steps.meta.outputs.tags }}" | sed -e 's/^.*:/--tag /')
+            $(echo "${{ steps.meta.outputs.tags }}" | sed -e 's/^/--tag /')
 
       - name: Call webhook
         if: inputs.webhook_url != ''