Use Python 3.10 for linting CI tasks and others.

.github/workflows/ci-build.yml

@@ -52,10 +52,10 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
-      - name: Set up Python 3.8
+      - name: Set up Python 3.10
         uses: actions/setup-python@v4
         with:
-          python-version: 3.8
+          python-version: '3.10'
       - name: Install dependencies
         run: python -m pip install tox
       - name: Lint with tox
@@ -89,10 +89,10 @@ jobs:
         # Fetch all tags and branches because tests rely on it
         with:
           fetch-depth: 0
-      - name: Set up Python 3.7
+      - name: Set up Python 3.10
         uses: actions/setup-python@v4
         with:
-          python-version: 3.7
+          python-version: '3.10'
       - name: Install dependencies and coverage
         run: python -m pip install tox
       - name: Test with tox with coverage