ci: harden github actions checkout with persist-credentials

Author: ShraddhaZoman

.github/workflows/docs-preview-deploy.yml

@@ -32,6 +32,7 @@ jobs:
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
+          persist-credentials: false
           token: '${{secrets.GITHUB_TOKEN}}'
 
       - name: Configure Firebase deploy target

.github/workflows/google-internal-tests.yml

@@ -14,8 +14,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
-      - uses: angular/dev-infra/github-actions/google-internal-tests@4a09f9588769980eacb41fcc76e2c76d048eac42 # main
         with:
+          persist-credentials: false
+      - uses: angular/dev-infra/github-actions/google-internal-tests@f826089a718c89f9ce3d6a0d3e155fbc0fb4a3de # main
+        with:
+          persist-credentials: false
           run-tests-guide-url: http://go/angular-material-presubmit
           github-token: ${{ secrets.GITHUB_TOKEN }}
           sync-config: ./.ng-dev/google-sync-config.json

.github/workflows/preview-deploy-dev-app.yml

@@ -27,7 +27,8 @@ jobs:
     if: ${{ github.event.workflow_run.conclusion == 'success' }}
     steps:
       - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
-
+        with:
+          persist-credentials: false
       - name: Configure Firebase deploy target
         run: |
           # We can use `npx` as the Firebase deploy actions uses it too.