Update sync_labels.yml

Author: sohami

.github/workflows/sync_labels.yml

@@ -14,7 +14,7 @@ jobs:
       - name: Synchronize labels
         uses: julbme/gh-action-manage-label@v1
         with:
-          from: https://github.com/sohami/.github/tree/main/.github/config/labels.json
+          from: https://raw.github.com/sohami/.github/tree/main/.github/config/labels.json
           skip_delete: true
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}