Webhook fails after upgrade to 3.7.2

[annately]

After upgrade from 3.6.4 to 3.7.2 (68f6439bad8e) my webhook started failing.

Output from admin/background-tasks:

Type:
FAILED
Created at:
2024-02-09, 11:46:58
Exception:

Traceback (most recent call last):
File "/opt/netbox/venv/lib/python3.11/site-packages/rq/worker.py", line 1428, in perform_job
rv = job.perform()
^^^^^^^^^^^^^
File "/opt/netbox/venv/lib/python3.11/site-packages/rq/job.py", line 1278, in perform
self._result = self._execute()
^^^^^^^^^^^^^^^
File "/opt/netbox/venv/lib/python3.11/site-packages/rq/job.py", line 1315, in _execute
result = self.func(*self.args, **self.kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/netbox/netbox/extras/webhooks.py", line 50, in send_webhook
'Content-Type': webhook.http_content_type,
^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'http_content_type'

I have tried deleting and adding again webhook and event rules configuration, but it didn't help.