Bump puma from 3.11.4 to 4.3.8
Bump puma from 3.11.4 to 4.3.8

Bumps [puma](https://github.com/puma/puma) from 3.11.4 to 4.3.8.
- [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/v3.11.4...v4.3.8)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
dejan/espeak-http