Bump django-extensions from 3.0.5 to 3.0.7 in /requirements (#15398)
Bump django-extensions from 3.0.5 to 3.0.7 in /requirements (#15398)

Bumps [django-extensions](https://github.com/django-extensions/django-extensions) from 3.0.5 to 3.0.7.
- [Release notes](https://github.com/django-extensions/django-extensions/releases)
- [Changelog](https://github.com/django-extensions/django-extensions/blob/master/CHANGELOG.md)
- [Commits](https://github.com/django-extensions/django-extensions/compare/3.0.5...3.0.7)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
mozilla/addons-server,eviljeff/olympia,bqbn/addons-server,mozilla/olympia,eviljeff/olympia,bqbn/addons-server,wagnerand/addons-server,wagnerand/addons-server,mozilla/olympia,eviljeff/olympia,bqbn/addons-server,mozilla/olympia,wagnerand/addons-server,diox/olympia,wagnerand/addons-server,mozilla/addons-server,diox/olympia,bqbn/addons-server,mozilla/addons-server,mozilla/addons-server,diox/olympia,mozilla/olympia,eviljeff/olympia,diox/olympia