removing node for checkout

Author: jonathan-taylor

.github/workflows/build_docs.yml

@@ -20,9 +20,7 @@ jobs: # This workflow contains a single
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-      - uses: actions/checkout@v3
-        with:
-          node-version: 20.x
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version: '3.12'