Bump sinatra from 4.1.1 to 4.2.0

Bumps [sinatra](https://github.com/sinatra/sinatra) from 4.1.1 to 4.2.0.
- [Changelog](https://github.com/sinatra/sinatra/blob/main/CHANGELOG.md)
- [Commits](sinatra/sinatra@v4.1.1...v4.2.0)

---
updated-dependencies:
- dependency-name: sinatra
  dependency-version: 4.2.0
  dependency-type: direct:development
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -168,7 +168,7 @@ GEM
       stringio
     racc (1.8.1)
     rack (3.2.2)
-    rack-protection (4.1.1)
+    rack-protection (4.2.0)
       base64 (>= 0.1.0)
       logger (>= 1.6.0)
       rack (>= 3.0.0, < 4)
@@ -257,11 +257,11 @@ GEM
     simplecov-html (0.13.2)
     simplecov_json_formatter (0.1.4)
     simpleidn (0.2.3)
-    sinatra (4.1.1)
+    sinatra (4.2.0)
       logger (>= 1.6.0)
       mustermann (~> 3.0)
       rack (>= 3.0.0, < 4)
-      rack-protection (= 4.1.1)
+      rack-protection (= 4.2.0)
       rack-session (>= 2.0.0, < 3)
       tilt (~> 2.0)
     stringio (3.1.7)