Bump rack-protection from 3.0.5 to 3.0.6

Bumps [rack-protection](https://github.com/sinatra/sinatra) from 3.0.5 to 3.0.6.
- [Release notes](https://github.com/sinatra/sinatra/releases)
- [Changelog](https://github.com/sinatra/sinatra/blob/main/CHANGELOG.md)
- [Commits](sinatra/sinatra@v3.0.5...v3.0.6)

---
updated-dependencies:
- dependency-name: rack-protection
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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

Gemfile.lock

@@ -265,7 +265,7 @@ GEM
     rack-canonical-host (1.1.0)
       addressable (> 0, < 3)
       rack (>= 1.0.0, < 3)
-    rack-protection (3.0.5)
+    rack-protection (3.0.6)
       rack
     rack-test (2.1.0)
       rack (>= 1.3)