Update celery to 5.2.7

[pyup-bot]

This PR updates celery from 5.2.3 to 5.2.7.

Changelog

5.2.7

=====

:release-date: 2022-5-26 12:15 P.M UTC+2:00
:release-by: Omer Katz

- Fix packaging issue which causes poetry 1.2b1 and above to fail install Celery (7534).

.. _version-5.2.6:

5.2.6

=====

:release-date: 2022-4-04 21:15 P.M UTC+2:00
:release-by: Omer Katz

- load_extension_class_names - correct module_name (7433).
 This fixes a regression caused by 7218.

.. _version-5.2.5:

5.2.5

=====

:release-date: 2022-4-03 20:42 P.M UTC+2:00
:release-by: Omer Katz

**This release was yanked due to a regression caused by the PR below**

- Use importlib instead of deprecated pkg_resources (7218).

.. _version-5.2.4:

5.2.4

=====

:release-date: 2022-4-03 20:30 P.M UTC+2:00
:release-by: Omer Katz

- Expose more debugging information when receiving unknown tasks (7404).

.. _version-5.2.3:

Links

• PyPI: https://pypi.org/project/celery
• Changelog: https://pyup.io/changelogs/celery/
• Homepage: http://celeryproject.org
• Docs: https://pythonhosted.org/celery/

[pyup-bot]

Closing this in favor of #167