docs.yml: update to match main configuration

Author: BrewTestBot

.github/workflows/docs.yml

@@ -35,6 +35,8 @@ jobs:
 
       - name: Checkout repository
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+        with:
+          persist-credentials: false
 
       - name: Install vale
         run: brew install vale