Bump rack from 2.0.7 to 2.0.8
Bumps [rack](https://github.com/rack/rack) from 2.0.7 to 2.0.8.
- [Release notes](https://github.com/rack/rack/releases)
- [Changelog](https://github.com/rack/rack/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rack/rack/compare/2.0.7...2.0.8)
Signed-off-by: dependabot[bot]
collected list of features
collect competitors to build feature list
test trello card, one more time
