do not use cache

Author: sds100

.github/workflows/build-mkdocs.yml

@@ -18,10 +18,6 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: 3.10
-      - uses: actions/cache@v3
-        with:
-          key: ${{ github.ref }}
-          path: .cache
       - run: pip install -r requirements.txt
       - run: mkdocs gh-deploy --force