Upgrade versions of github actions

.github/workflows/pytest.yml

@@ -5,14 +5,14 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9, "3.10", "3.11"]
+        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10", "3.11"]
     steps:
     - name: Checkout repository and submodules
-      uses: actions/checkout@v1
+      uses: actions/checkout@v4
       with:
         submodules: recursive
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
@@ -29,6 +29,6 @@ jobs:
     - name: Test with pytest
       run: |
         python -m pytest --cov --cov-config=.coveragerc
-    - uses: codecov/codecov-action@v1
+    - uses: codecov/codecov-action@v4
       with:
         token: ${{ secrets.CODECOV_TOKEN }} # not required for public repos