ci: update GitHub actions (#1155)

.github/workflows/pypi.yml

@@ -10,9 +10,9 @@ jobs:
     name: Build and publish to TestPyPI
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Python 3.9
-      uses: actions/setup-python@v1
+        uses: actions/setup-python@v5
         with:
           python-version: 3.9
       - name: Install pypa/build
@@ -41,9 +41,9 @@ jobs:
     name: Build and publish to PyPI
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Python 3.9
-      uses: actions/setup-python@v1
+        uses: actions/setup-python@v5
         with:
           python-version: 3.9
       - name: Install pypa/build
@@ -65,4 +65,3 @@ jobs:
         uses: pypa/gh-action-pypi-publish@master
         with:
           password: ${{ secrets.PYPI_API_TOKEN }}
-

.github/workflows/tests.yml

@@ -6,9 +6,9 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Python
-      uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
           python-version: '3.x'
       - name: Install dependencies