Fix docs build action

Author: Starbuck5

.github/workflows/build.yml

@@ -33,7 +33,7 @@ jobs:
         python-version: ['3.11']
     steps:
       # Build documentation pages
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4
         with: