Specify Python 3.10 for linting

.github/workflows/lint_python.yml

@@ -6,8 +6,10 @@ jobs:
     lint_python:
         runs-on: ubuntu-latest
         steps:
-            - uses: actions/checkout@v2
-            - uses: actions/setup-python@v2
+            - uses: actions/checkout@v3
+            - uses: actions/setup-python@v3
+              with:
+                python-version: "3.10"
             - run: pip install --upgrade pip wheel
             - run: pip install .
             - run: pip install bandit black flake8 flake8-bugbear flake8-comprehensions isort safety mypy