Bump test-kitchen from 2.3.2 to 2.3.3 in /omnibus

Bumps [test-kitchen](https://github.com/test-kitchen/test-kitchen) from 2.3.2 to 2.3.3.
- [Release notes](https://github.com/test-kitchen/test-kitchen/releases)
- [Changelog](https://github.com/test-kitchen/test-kitchen/blob/master/CHANGELOG.md)
- [Commits](https://github.com/test-kitchen/test-kitchen/compare/v2.3.2...v2.3.3)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>