ci : fix winget workflow (#17790)

.github/workflows/winget.yml

@@ -9,7 +9,7 @@ jobs:
   update:
     name: Update Winget Package
     runs-on: ubuntu-latest
-    if: ${{ github.repository.owner.login == 'ggml-org' }}
+    if: github.repository_owner == 'ggml-org'
 
     steps:
       - name: Install cargo binstall