Bump rack from 2.2.8.1 to 2.2.11

Bumps [rack](/~https://github.com/rack/rack) from 2.2.8.1 to 2.2.11.
- [Release notes](/~https://github.com/rack/rack/releases)
- [Changelog](/~https://github.com/rack/rack/blob/main/CHANGELOG.md)
- [Commits](rack/rack@v2.2.8.1...v2.2.11)

---
updated-dependencies:
- dependency-name: rack
  dependency-type: direct:development
...

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

Gemfile.lock

@@ -28,7 +28,7 @@ GEM
       racc
     power_assert (2.0.3)
     racc (1.7.3)
-    rack (2.2.8.1)
+    rack (2.2.11)
     rack-protection (2.2.4)
       rack
     rainbow (3.1.1)