fix syntax

Author: vorporeal

.github/workflows/sync.yml

@@ -55,7 +55,7 @@ jobs:
       - uses: actions/checkout@v4
         with: { fetch-depth: 0, token: "${{ steps.token.outputs.token }}" }
       - uses: actions/checkout@v4
-        with: { repository: warpdotdev/repo-sync, ref: ${{ github.action_ref }}, path: .repo-sync, token: "${{ steps.token.outputs.token }}" }
+        with: { repository: warpdotdev/repo-sync, ref: "${{ github.action_ref }}", path: .repo-sync, token: "${{ steps.token.outputs.token }}" }
       - uses: actions/setup-python@v5
         with: { python-version: "3.12" }
       - run: pip install -e .repo-sync