CI: Update checkout settings

Change-type: patch

.github/workflows/publish-docs.yml

@@ -17,6 +17,8 @@ jobs:
     steps:
       - name: Check out
         uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2
+        with:
+          persist-credentials: false
 
       - name: Setup node
         uses: actions/setup-node@7c12f8017d5436eb855f1ed4399f037a36fbd9e8 # v2