Summary:
Original diff: https://phorge.dev.yugabyte.com/D42929 (143211b4e62357be374b0e6b84d3fe67cfe020d2)

Send HTTP 529 back to the client on the exceptions.

Test Plan:
Trivial change as this path is followed.

2025-03-25T13:51:29.934Z -> Garbage collected 97 rows
2025-03-25T13:51:02.680Z -> YWErrorHandler invoked jakarta.persistence.EntityNotFoundException: (Lazy) loading failed on type:com.yugabyte.yw.models.TaskInfo id:a836c17a-1b51-4fc6-b0d0-8c84a47f177a

Reviewers: daniel, amalyshev

Reviewed By: daniel

Subscribers: yugaware

Differential Revision: https://phorge.dev.yugabyte.com/D42930