Bump puma from 4.2.1 to 4.3.1 in /website (#100)
Bump puma from 4.2.1 to 4.3.1 in /website (#100)

Bumps [puma](https://github.com/puma/puma) from 4.2.1 to 4.3.1.
- [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/v4.2.1...v4.3.1)

This is just for the demo website. 
discourse/logster,discourse/logster,discourse/logster,discourse/logster