Bump sinatra from 2.0.7 to 2.0.8.1
Bump sinatra from 2.0.7 to 2.0.8.1

Bumps [sinatra](https://github.com/sinatra/sinatra) from 2.0.7 to 2.0.8.1.
- [Release notes](https://github.com/sinatra/sinatra/releases)
- [Changelog](https://github.com/sinatra/sinatra/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sinatra/sinatra/compare/v2.0.7...v2.0.8.1)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
Floppy/healthboard,Floppy/healthboard