[BUG] Support Django 5.1

[RuslanSibgatulin]

Describe the bug
Deprecation warning with Django 5.1

  File "/usr/local/lib/python3.12/site-packages/clickhouse_backend/models/engines.py", line 142, in __init__
    if isinstance(value, str) or not is_iterable(value):
                                     ^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/django/utils/itercompat.py", line 10, in is_iterable
    warnings.warn(
django.utils.deprecation.RemovedInDjango60Warning: django.utils.itercompat.is_iterable() is deprecated. Use isinstance(..., collections.abc.Iterable) instead.

Can you fix it?

[jayvynl]

I see you have forked this project. Are you interested in post a PR?

[RuslanSibgatulin]

I see you have forked this project. Are you interested in post a PR?

Yes #111