disable cache, keep setup python

.github/workflows/ci-docs.yml

@@ -19,12 +19,12 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Setup Python
-        if: false
+        # if: false
         uses: actions/setup-python@v5
         with:
           python-version: "3.11"
-          cache: "pip"
-          cache-dependency-path: mkdocs/requirements.txt
+          # cache: "pip"
+          # cache-dependency-path: mkdocs/requirements.txt
 
       - name: Install dependencies
         run: |