Build: using persist-credentials false in checkout action

Author: stevematney

.github/workflows/npm-publish.yml

@@ -22,6 +22,8 @@ jobs:
     steps:
     - name: Checkout
       uses: actions/checkout@v2
+      with:
+        persist-credentials: false
     - run: npm ci
     - name: Semantic Release
       uses: cycjimmy/semantic-release-action@v2