build: update actions/checkout digest to eef6144 (angular#58108)

See associated pull request for more information.

PR Close angular#58108

Author: angular-robot

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

@@ -29,7 +29,7 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ github.event.workflow_run.conclusion == 'success' }}
     steps:
-      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
+      - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
         with:
           token: '${{secrets.GITHUB_TOKEN}}'