Maintenance: Bump puma from 4.3.11 to 4.3.12
Maintenance: Bump puma from 4.3.11 to 4.3.12

Bumps [puma](https://github.com/puma/puma) from 4.3.11 to 4.3.12.
- [Release notes](https://github.com/puma/puma/releases)
- [Changelog](https://github.com/puma/puma/blob/master/History.md)
- [Commits](https://github.com/puma/puma/compare/v4.3.11...v4.3.12)
monotek/zammad,monotek/zammad,monotek/zammad,zammad/zammad,monotek/zammad,zammad/zammad,zammad/zammad,monotek/zammad,zammad/zammad,zammad/zammad,zammad/zammad,monotek/zammad