Bump sinatra from 3.0.5 to 3.0.6 (#2816)

Bumps [sinatra](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](https://github.com/sinatra/sinatra/compare/v3.0.5...v3.0.6)

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

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

Gemfile

@@ -10,7 +10,7 @@ gem 'json'
 
 gem 'eventmachine', '~> 1.2', '>= 1.2.7'
 gem 'thin', '~> 1.8'
-gem 'sinatra', '~> 3.0', '>= 3.0.5'
+gem 'sinatra', '~> 3.0'
 gem 'rack', '~> 2.2'
 gem 'rack-protection', '~> 3.0.5'
 gem 'em-websocket', '~> 0.5.3' # WebSocket support

Gemfile.lock

@@ -114,7 +114,7 @@ GEM
       rqrcode_core (~> 0.1)
     racc (1.6.2)
     rack (2.2.7)
-    rack-protection (3.0.5)
+    rack-protection (3.0.6)
       rack
     rack-test (2.1.0)
       rack (>= 1.3)
@@ -168,10 +168,10 @@ GEM
       rexml (~> 3.2, >= 3.2.5)
       rubyzip (>= 1.2.2, < 3.0)
       websocket (~> 1.0)
-    sinatra (3.0.5)
+    sinatra (3.0.6)
       mustermann (~> 3.0)
       rack (~> 2.2, >= 2.2.4)
-      rack-protection (= 3.0.5)
+      rack-protection (= 3.0.6)
       tilt (~> 2.0)
     slack-notifier (2.4.0)
     sqlite3 (1.6.1-x86_64-linux)
@@ -259,7 +259,7 @@ DEPENDENCIES
   rubyzip (~> 2.3)
   rushover (~> 0.3.0)
   selenium-webdriver (~> 4.9)
-  sinatra (~> 3.0, >= 3.0.5)
+  sinatra (~> 3.0)
   slack-notifier (~> 2.4)
   sqlite3 (~> 1.6, >= 1.6.1)
   term-ansicolor