Set variable to new domain for docs review apps (Runner)
What does this MR do?
In gitlab-docs!3179 (merged), we set the docs project to start deploying review apps to a GCP bucket, but it wasn't working because we also forgot to update this CI/CD variable to the new location.
This MR updates the variable, and should be merged around the same time as gitlab-docs!3198 (merged), which re-implements the new review app system.
- Related to gitlab-docs!3179 (merged)
- Related to gitlab-docs#735 (closed)