## Description

Cherry-picks https://github.com/edx/edx-platform/pull/28066 into `open-release/lilac.master`.

## Testing instructions

* LMS: https://periodic-build-lilac.opencraft.hosting/
* Studio: https://studio.periodic-build-lilac.opencraft.hosting/

(Ocim Admins only)

1. Locate the Active running appserver for the [Periodic build Lilac instance](https://manage.opencraft.com/instance/28490/) via Ocim
2. Visit the Authenticated Link , and append `/heartbeat?extended`
3. Ensure that the `celery` check is passing.

## Deadline

None

## Other information

1. Ordinarily, we'd be able to view the https://periodic-build-lilac.opencraft.hosting/heartbeat?extended to verify that the heartbeat checks are succeeding.

   However, the `forum` extended check is also failing for lilac.master (and master), and so Ocim redirects to the standard error page instead of showing the healthcheck json. The `forum` failure will be addressed by https://github.com/edx/configuration/pull/6482.

## Reviewer

- [ ] @gabor-boros  
- [ ] @arbrandes