-n auto is from pytest-xdist

Author: RadoRado

.github/workflows/django.yml

@@ -53,7 +53,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: ./.github/workflows/python_and_pip
       - name: Run tests
-        run: pytest -s -n auto --splits 5 --group ${{ matrix.groups }} --splitting-algorithm least_duration
+        run: pytest -s --splits 5 --group ${{ matrix.groups }} --splitting-algorithm least_duration
 
   deploy_to_heroku:
     runs-on: ubuntu-latest