Update django-oauth-toolkit requirement from ==2.4.* to >=2.4,<3.1

Updates the requirements on [django-oauth-toolkit](https://github.com/jazzband/django-oauth-toolkit) to permit the latest version.
- [Release notes](https://github.com/jazzband/django-oauth-toolkit/releases)
- [Changelog](https://github.com/jazzband/django-oauth-toolkit/blob/master/CHANGELOG.md)
- [Commits](jazzband/django-oauth-toolkit@2.4.0...3.0.1)

---
updated-dependencies:
- dependency-name: django-oauth-toolkit
  dependency-type: direct:production
...

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

pyproject.toml

@@ -64,7 +64,7 @@ dependencies = [
   'pretalx-downstream @ git+https://github.com/fossasia/eventyay-talk-downstream.git@main',
   "django-allauth~=0.63.3",
   "PyJWT~=2.8.0",
-  'django-oauth-toolkit==2.4.*',
+  'django-oauth-toolkit>=2.4,<3.1',
   'requests-oauthlib==2.*',
   'psycopg2-binary==2.9.9',
   'oauthlib==3.2.*',