Bump rack-protection from 3.0.3 to 3.0.4 (#2641)

Bumps [rack-protection](https://github.com/sinatra/sinatra) from 3.0.3 to 3.0.4.
- [Release notes](https://github.com/sinatra/sinatra/releases)
- [Changelog](https://github.com/sinatra/sinatra/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sinatra/sinatra/compare/v3.0.3...v3.0.4)

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

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile.lock

@@ -133,7 +133,7 @@ GEM
       rqrcode_core (~> 0.1)
     racc (1.6.0)
     rack (2.2.4)
-    rack-protection (3.0.3)
+    rack-protection (3.0.4)
       rack
     rack-test (2.0.2)
       rack (>= 1.3)
@@ -189,10 +189,10 @@ GEM
       rubyzip (>= 1.2.2, < 3.0)
       websocket (~> 1.0)
     simple_oauth (0.3.1)
-    sinatra (3.0.3)
+    sinatra (3.0.4)
       mustermann (~> 3.0)
       rack (~> 2.2, >= 2.2.4)
-      rack-protection (= 3.0.3)
+      rack-protection (= 3.0.4)
       tilt (~> 2.0)
     slack-notifier (2.4.0)
     sqlite3 (1.5.3-x86_64-linux)