Bump rack from 2.2.3 to 3.0.0

Bumps [rack](https://github.com/rack/rack) from 2.2.3 to 3.0.0.
- [Release notes](https://github.com/rack/rack/releases)
- [Changelog](https://github.com/rack/rack/blob/main/CHANGELOG.md)
- [Commits](rack/rack@2.2.3...3.0.0)

---
updated-dependencies:
- dependency-name: rack
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile.lock

@@ -23,7 +23,7 @@ GEM
     parallel (1.20.1)
     parser (3.0.2.0)
       ast (~> 2.4.1)
-    rack (2.2.3)
+    rack (3.0.0)
     rainbow (3.0.0)
     rake (13.0.6)
     redcarpet (3.5.1)