Bump puma from 6.4.2 to 6.4.3 in /frameworks/Ruby/rack
Bumps [puma](https://github.com/puma/puma) from 6.4.2 to 6.4.3.
- [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/v6.4.2...v6.4.3)
---
updated-dependencies:
- dependency-name: puma
dependency-type: direct:production
...
Signed-off-by: dependabot[bot] <[email protected]>
dependabot[bot]