Update build_py_tools.yml

Author: me-no-dev

Diff for: .github/workflows/build_py_tools.yml

@@ -16,6 +16,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
         with:
+          fetch-depth: 2
           ref: ${{ github.event.pull_request.head.ref }}
       - name: Verify Python Tools Changed
         uses: tj-actions/changed-files@v36