Bump rack from 2.0.7 to 2.1.4.2

Bumps [rack](https://github.com/rack/rack) from 2.0.7 to 2.1.4.2.
- [Release notes](https://github.com/rack/rack/releases)
- [Changelog](https://github.com/rack/rack/blob/main/CHANGELOG.md)
- [Commits](rack/rack@2.0.7...v2.1.4.2)

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

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

Author: dependabot[bot]

Gemfile.lock

@@ -147,7 +147,7 @@ GEM
       method_source (~> 0.8.1)
       slop (~> 3.4)
     public_suffix (3.1.1)
-    rack (2.0.7)
+    rack (2.1.4.2)
     rack-protection (2.0.7)
       rack
     rainbow (2.2.2)