Authenticate as repository owner

.gitea/workflows/publish-chart.yaml

@@ -32,7 +32,7 @@ jobs:
         run: |
           # Gitea automatically provides the token and actor variables
           echo ${{ secrets.REPOSITORY_TOKEN }} | helm registry login ${{ env.REGISTRY_HOST }} \
-            --username ${{ gitea.actor }} \
+            --username ${{ gitea.repository_owner }} \
             --password-stdin
 
       - name: Push to Gitea Registry
@@ -46,4 +46,4 @@ jobs:
           
           # Push to the OCI registry
           # URL Format: oci://<domain>/<user/org>/charts
-          helm push $CHART_FILE oci://$DOMAIN/${{ gitea.actor }}/charts
+          helm push $CHART_FILE oci://$DOMAIN/${{ gitea.repository_owner }}/charts