[Workflow] Try to fix code-formatter failing to find changes in some …

…cases.

See comment here: https://github.com/tj-actions/changed-files#usage-

.github/workflows/pr-code-format.yml

@@ -11,6 +11,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 2
+          repository: ${{ github.event.pull_request.head.repo.full_name }}
 
       - name: Get changed files
         id: changed-files