chore(deps): update dependency rack to v3

Author: renovate[bot]

examples/subservice-languages/ruby/Gemfile

@@ -4,5 +4,5 @@ source 'https://rubygems.org'
 
 gem 'graphql', '~> 1.10'
 gem 'graphql-schema_directives', '~> 0.0'
-gem 'rack', '~> 2.0'
+gem 'rack', '~> 3.0'
 gem 'webrick', '~> 1.9.1'

examples/subservice-languages/ruby/Gemfile.lock

@@ -6,7 +6,7 @@ GEM
       base64
     graphql-schema_directives (0.0.2)
       graphql (~> 1.9)
-    rack (2.2.10)
+    rack (3.1.8)
     webrick (1.9.1)
 
 PLATFORMS
@@ -16,7 +16,7 @@ PLATFORMS
 DEPENDENCIES
   graphql (~> 1.10)
   graphql-schema_directives (~> 0.0)
-  rack (~> 2.0)
+  rack (~> 3.0)
   webrick (~> 1.9.1)
 
 BUNDLED WITH