Bump whitenoise from 6.6.0 to 6.7.0

Bumps [whitenoise](https://github.com/evansd/whitenoise) from 6.6.0 to 6.7.0.
- [Changelog](https://github.com/evansd/whitenoise/blob/main/docs/changelog.rst)
- [Commits](evansd/whitenoise@6.6.0...6.7.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -286,7 +286,7 @@ wagtailmedia==0.14.5
  # via -r requirements.in
 webencodings==0.5.1
  # via html5lib
-whitenoise==6.6.0
+whitenoise==6.7.0
  # via -r requirements.in
 willow[heif]==1.6.3
  # via