Bump whitenoise from 6.8.1 to 6.9.0 in /requirements

Bumps [whitenoise](https://github.com/evansd/whitenoise) from 6.8.1 to 6.9.0.
- [Changelog](https://github.com/evansd/whitenoise/blob/main/docs/changelog.rst)
- [Commits](evansd/whitenoise@6.8.1...6.9.0)

---
updated-dependencies:
- dependency-name: whitenoise
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements/project-requirements.txt

@@ -31,7 +31,7 @@ dataclasses==0.6
 flower==2.0.0
 uWSGI==2.0.22
 uwsgitop==0.12
-whitenoise==6.8.1
+whitenoise==6.9.0
 daphne==4.1.0
 channels==4.1.0
 channels-redis==4.2.0