Remove author when updating pull request with GitHub Pages build status

Author: mlr

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

@@ -81,7 +81,6 @@ jobs:
         with:
           token: ${{ secrets.DOCS_GITHUB_PAT }}
           issue-number: ${{ github.event.pull_request.number }}
-          comment-author: 'mlr'
           body-includes: UI bundle preview build successful!
           direction: last