Looks like we can cache pip deps directly with actions/setup-python

.github/workflows/docs.yml

@@ -47,16 +47,10 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: 3.x
+          cache: 'pip'
 
       - run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV
 
-      - uses: actions/cache@v4
-        with:
-          key: mkdocs-material-${{ env.cache_id }}
-          path: .cache
-          restore-keys: |
-            mkdocs-material-
-
       - run: pip install -r requirements.txt
 
       - name: Build Docs and Capture Warnings