Bump django-waffle from 2.3.0 to 2.4.1 in /requirements (#19032)

Bumps [django-waffle](https://github.com/django-waffle/django-waffle) from 2.3.0 to 2.4.1.
- [Release notes](https://github.com/django-waffle/django-waffle/releases)
- [Changelog](https://github.com/django-waffle/django-waffle/blob/master/CHANGES)
- [Commits](https://github.com/django-waffle/django-waffle/compare/v2.3.0...v2.4.1)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements/prod.txt

@@ -283,9 +283,9 @@ django-statsd-mozilla==0.4.0 \
 django-tables2==2.4.1 \
     --hash=sha256:50762bf3d7c61a4eb70e763c3e278650d7266bb78d0497fc8fafcf4e507c9a64 \
     --hash=sha256:6c72dd208358539e789e4c0efd7d151e43283a4aa4093a35f44c43489e7ddeaa
-django-waffle==2.3.0 \
-    --hash=sha256:e4c29570d61c5759b07d9c88154c14b0b189dbf772ac8744c44e226cc7bd75bf \
-    --hash=sha256:8f457523859f39f77b785dfeb18d57d8c80d97ba05698aed7fa587bb86539476
+django-waffle==2.4.1 \
+    --hash=sha256:36f63b15ba1cfb295f53638d043cc17fb40b5796aee075891dc4210779a999fb \
+    --hash=sha256:f88e3e6c5a6e0d89a763eb1ba039b3bb707b3e63b20359dbb584c8775df286df
 # djangorestframework is required by drf-nested-routers
 djangorestframework==3.13.1 \
     --hash=sha256:24c4bf58ed7e85d1fe4ba250ab2da926d263cd57d64b03e8dcef0ac683f8b1aa \