Apply rubocop to gemspec and fix

Author: itstheraj

ruby_llm.gemspec

@@ -36,7 +36,7 @@ Gem::Specification.new do |spec|
   # Runtime dependencies
   spec.add_dependency 'base64'
   spec.add_dependency 'event_stream_parser', '~> 1'
-  spec.add_dependency "faraday", ENV['FARADAY_VERSION'] || ">= 1.10.0"
+  spec.add_dependency 'faraday', ENV['FARADAY_VERSION'] || '>= 1.10.0'
   spec.add_dependency 'faraday-multipart', '>= 1'
   spec.add_dependency 'faraday-net_http', '>= 1'
   spec.add_dependency 'faraday-retry', '>= 1'