Bump rack from 2.2.3 to 3.0.4.2

Bumps [rack](https://github.com/rack/rack) from 2.2.3 to 3.0.4.2.
- [Release notes](https://github.com/rack/rack/releases)
- [Changelog](https://github.com/rack/rack/blob/main/CHANGELOG.md)
- [Commits](rack/rack@2.2.3...v3.0.4.2)

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

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile.lock

@@ -27,7 +27,7 @@ GEM
     pry (0.14.1)
       coderay (~> 1.1)
       method_source (~> 1.0)
-    rack (2.2.3)
+    rack (3.0.4.2)
     rainbow (3.1.1)
     rake (13.0.6)
     regexp_parser (2.3.1)