CI: Set persist-credentials: true in format-command.yml (#4137)

Needed to fix `fatal: could not read Username for 'https://github.com': No such device or address`.

Author: weiji14

.github/workflows/format-command.yml

@@ -29,7 +29,7 @@ jobs:
           token: ${{ steps.generate-token.outputs.token }}
           repository: ${{ github.event.client_payload.pull_request.head.repo.full_name }}
           ref: ${{ github.event.client_payload.pull_request.head.ref }}
-          persist-credentials: false
+          persist-credentials: true
 
       # Setup Python environment
       - uses: actions/[email protected]