Update python-tests.yml to use types-setuptools instead of yanked typ…

…es-pkg_resources (#44)

.github/workflows/python-tests.yml

@@ -25,7 +25,7 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install -U flake8 ruff pytest pytest-doctestplus pytest-pylint pytest-mypy
-        pip install -U types-pkg_resources
+        pip install -U types-setuptools
         pip install .
     - name: Lint with flake8
       run: |