Bump sinatra-contrib from 1.4.7 to 2.0.0
Bump sinatra-contrib from 1.4.7 to 2.0.0

Bumps [sinatra-contrib](https://github.com/sinatra/sinatra) from 1.4.7 to 2.0.0.
- [Changelog](https://github.com/sinatra/sinatra/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sinatra/sinatra/compare/v1.4.7...v2.0.0)
sgh-eltern/pdf-service,sgh-eltern/pdf-service