[Security] Bump kaminari from 1.2.0 to 1.2.1
[Security] Bump kaminari from 1.2.0 to 1.2.1

Bumps [kaminari](https://github.com/kaminari/kaminari) from 1.2.0 to 1.2.1. **This update includes a security fix.**
- [Release notes](https://github.com/kaminari/kaminari/releases)
- [Changelog](https://github.com/kaminari/kaminari/blob/master/CHANGELOG.md)
- [Commits](https://github.com/kaminari/kaminari/compare/v1.2.0...v1.2.1)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
alphagov/signonotron2,alphagov/signonotron2,alphagov/signonotron2,alphagov/signonotron2