chore(deps): update actions/checkout action to v4

.github/workflows/docs.yaml

@@ -10,7 +10,7 @@ jobs:
   publish-documentation:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/setup-python@v4
         with:

.github/workflows/python.yml

@@ -16,7 +16,7 @@ jobs:
         platform: [ubuntu-20.04, macos-latest] # TODO: , windows-latest
     runs-on: ${{ matrix.platform }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4
         with:

.github/workflows/pythonpublish.yaml

@@ -9,7 +9,7 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           token: "${{ secrets.PERSONAL_ACCESS_TOKEN }}"
           fetch-depth: 0

.github/workflows/release.yml

@@ -8,7 +8,7 @@ jobs:
     name: "Bump version, create changelog with commitizen, create GitHub release"
     steps:
       - name: Check out
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
           token: "${{ secrets.PERSONAL_ACCESS_TOKEN }}"