MAINT: update CI

.github/dependabot.yml

@@ -0,0 +1,7 @@
+version: 2
+updates:
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/tests.yml

@@ -17,30 +17,30 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
-    - name: Set up Python 3.8
-      uses: actions/setup-python@v2
+    - uses: actions/checkout@v3
+    - name: Set up Python 3.10
+      uses: actions/setup-python@v3
       with:
-        python-version: 3.8
-    - uses: pre-commit/action@v2.0.0
+        python-version: 3.10
+    - uses: pre-commit/action@v3.0.0
 
   tests:
 
     strategy:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        python-version: [3.7, 3.8, 3.9, "3.10"]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
         include:
         - os: windows-latest
-          python-version: 3.8
+          python-version: 3.9
 
     runs-on: ${{ matrix.os }}
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
@@ -51,27 +51,27 @@ jobs:
       run: |
         pytest --cov=sphinx_external_toc --cov-report=xml --cov-report=term-missing
     - name: Upload to Codecov
-      if: matrix.python-version == 3.8
+      if: matrix.python-version == 3.9
       uses: codecov/codecov-action@v1
       with:
-        name: pytests-py3.8
+        name: pytests-py3.9
         flags: pytests
         file: ./coverage.xml
         fail_ci_if_error: true
 
   publish:
 
-    name: Publish to PyPi
+    name: Publish to PyPI
     needs: [pre-commit, tests]
     if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags')
     runs-on: ubuntu-latest
     steps:
     - name: Checkout source
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
     - name: Set up Python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
-        python-version: 3.8
+        python-version: 3.10
     - name: install flit
       run: |
         pip install flit~=3.4