Bump dj-pagination from 2.4.0 to 2.5.0 in /cvat/requirements (#1873)

Bumps [dj-pagination](https://github.com/pydanny/dj-pagination) from 2.4.0 to 2.5.0.
- [Release notes](https://github.com/pydanny/dj-pagination/releases)
- [Changelog](https://github.com/pydanny/dj-pagination/blob/master/docs/changes.rst)
- [Commits](https://github.com/pydanny/dj-pagination/commits)

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Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

cvat/requirements/base.txt

@@ -20,7 +20,7 @@ rq-scheduler==0.10.0
 scipy==1.4.1
 sqlparse==0.3.1
 django-sendfile==0.3.11
-dj-pagination==2.4.0
+dj-pagination==2.5.0
 python-logstash==0.4.6
 django-revproxy==0.10.0
 rules==2.2