Bump sinatra from 2.0.4 to 3.0.4

Bumps [sinatra](https://github.com/sinatra/sinatra) from 2.0.4 to 3.0.4.
- [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/v2.0.4...v3.0.4)

---
updated-dependencies:
- dependency-name: sinatra
dependency-type: direct:production
...

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Nothing here #3369.1 errored

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