Push strategy generates an error in the latest stable release (2.9.1)

[madumro]

Description
UST throws an error when trying to use push strategy with the latest releases (2.9.0, 2.9.1, 2.10.1rc):

2024-01-04 13:26:46 8100 CRITICAL main - Unhandled exception
Traceback (most recent call last):
File "user_sync\app.py", line 461, in run_sync
File "user_sync\app.py", line 409, in begin_work_umapi
File "user_sync\engine\umapi.py", line 197, in run
File "user_sync\engine\umapi.py", line 495, in sync_umapi_users
AttributeError: 'list' object has no attribute 'data'

Steps to reproduce

• The issue was signalled by a customer who syncs from a .csv file, but it can be reproduced at synchronization from an ldap source as well.
• Command-line: user-sync.exe -t --strategy push
• Can be reproduced with the default options

Expected behavior
The tool should push the changed to Admin Console without errors.
This is critical for the customer who has over 200,000 students and 25,000 staff and need the push strategy.

Environment

• UST version: All new UST versions with OAuth support

[Morish24]

We are also having getting the same error with all latest versions. Can this be fixed.