collab: Downgrade non-collab queries to `READ COMMITTED` isolation level (#31552)
This PR downgrades a number of database queries that aren't part of the
actual collaboration from `SERIALIZABLE` to `READ COMMITTED`.
The serializable isolation level is overkill for these queries.
Release Notes:
- N/A
09fc64e0c5Marshall Bowers committed on 5/27/2025, 9:02:27 PM· committed by GitHubparentfc803ce