disable pdm cache

Author: mooperd

.github/workflows/preview-docs.yml

@@ -17,8 +17,8 @@ jobs:
       - name: Setup PDM
         uses: pdm-project/setup-pdm@v4
         with:
-          python-version: 3.12
-          cache: true
+          python-version: 3.13
+          cache: false
 
       - name: Install dependencies
         run: pdm install