Add workaround to unsafe repository CI failure (#225)

* Try setting fetch-depth in checkout step

* Add repository as a safe directory

* Remove fetch-depth setting

.github/workflows/main.yaml

@@ -22,6 +22,7 @@ jobs:
       - uses: actions/checkout@v3
       - name: Install
         run: |
+          git config --global --add safe.directory /__w/cmip6-downscaling/cmip6-downscaling
           python -m pip install --no-deps -e .
           python -m pip list
       - name: Running Tests