Make sure we use a recent pytest version

Author: hansthen

.github/workflows/test_playwright.yml

@@ -29,6 +29,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install flake8 pytest pytest-playwright
+	  if [ -f tests/requirements.txt ]; then pip install -r tests/requirements.txt; fi
           pip install -e . --force-reinstall
       - uses: pre-commit/action@v2.0.3
       - name: Install playwright dependencies

requirements-dev.txt

@@ -28,8 +28,6 @@ pillow
 pre-commit
 pycodestyle
 pydata-sphinx-theme
-pytest
-pytest-playwright
 scipy
 selenium<4.27.0
 setuptools_scm