Update whitenoise to 6.8.1

[pyup-bot]

This PR updates whitenoise from 6.7.0 to 6.8.1.

Changelog

6.8.1

------------------

* Raise any errors from threads in the ``whitenoise.compress`` command.

Regression in 6.8.0.
Thanks to Tom Grainger for the spotting this with a `comment on PR 484 <https://github.com/evansd/whitenoise/pull/484#discussion_r1818989096>`__.

6.8.0

------------------

* Drop Django 3.2 to 4.1 support.

* Drop Python 3.8 support.

* Support Python 3.13.

* Fix a bug introduced in version 6.0.0 where ``Range`` requests could lead to database connection errors in other requests.

Thanks to Per Myren for the detailed investigation and fix in `PR 612 <https://github.com/evansd/whitenoise/pull/612>`__.

* Use Django’s |FORCE_SCRIPT_NAME|__ setting correctly.
This reverts a change from version 5.3.0 that added a call to Django’s |get_script_prefix() method|__ outside of the request-response cycle.

.. |FORCE_SCRIPT_NAME| replace:: ``FORCE_SCRIPT_NAME``
__ https://docs.djangoproject.com/en/stable/ref/settings/#std:setting-FORCE_SCRIPT_NAME

.. |get_script_prefix() method| replace:: ``get_script_prefix()`` method
__ https://docs.djangoproject.com/en/stable/ref/urlresolvers/#django.urls.get_script_prefix

Thanks to Sarah Boyce in `PR 486 <https://github.com/evansd/whitenoise/pull/486>`__.

* Compress files using a thread pool.
This speeds up the compression step up to four times in benchmarks.

Thanks to Anthony Ricaud in `PR 484 <https://github.com/evansd/whitenoise/pull/484>`__.

Links

• PyPI: https://pypi.org/project/whitenoise
• Changelog: https://data.safetycli.com/changelogs/whitenoise/