Bump rack-protection from 3.0.2 to 3.0.3

Bumps [rack-protection](https://github.com/sinatra/sinatra) from 3.0.2 to 3.0.3.
- [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/v3.0.2...v3.0.3)

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

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

Gemfile.lock

@@ -748,7 +748,7 @@ GEM
       httpclient
       json-jwt (>= 1.11.0)
       rack (>= 2.1.0)
-    rack-protection (3.0.2)
+    rack-protection (3.0.3)
       rack
     rack-test (2.0.2)
       rack (>= 1.3)