⬆️ Update actions/checkout action to v5

Author: renovate[bot]

.github/workflows/check.yml

@@ -39,7 +39,7 @@ jobs:
         key: ${{ runner.os }}-${{ matrix.python-version }}-check
 
     - name: "📥 Checkout"
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         fetch-depth: 0
 

.github/workflows/docs.yml

@@ -28,7 +28,7 @@ jobs:
             .cache
             .venv
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         name: "📥 Checkout"
         with:
           fetch-depth: 0

.github/workflows/publish.yml

@@ -14,7 +14,7 @@ jobs:
 
     steps:
     - name: 📥 Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         fetch-depth: 0