Update lint_python.yml

Author: cclauss

.github/workflows/lint_python.yml

@@ -6,6 +6,8 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4
+        with:
+          python-version: '3.x'
       - run: pip install --upgrade pip wheel
       - run: pip install bandit black codespell flake8 flake8-bugbear flake8-return
                          flake8-comprehensions isort mypy pytest pyupgrade safety