Bump rails_admin from 2.0.2 to 2.1.0
Bump rails_admin from 2.0.2 to 2.1.0

Bumps [rails_admin](https://github.com/sferik/rails_admin) from 2.0.2 to 2.1.0.
- [Release notes](https://github.com/sferik/rails_admin/releases)
- [Changelog](https://github.com/sferik/rails_admin/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sferik/rails_admin/compare/v2.0.2...v2.1.0)

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