fix nokogiri version

Author: clhain

pages/Gemfile

@@ -32,7 +32,7 @@ gem "wdm", "~> 0.1", :platforms => [:mingw, :x64_mingw, :mswin]
 # do not have a Java counterpart.
 gem "http_parser.rb", "~> 0.6.0", :platforms => [:jruby]
 
-gem 'nokogiri', '>= 1.18.8'
+gem 'nokogiri', '>= 1.18.9'
 gem 'rack', '~> 2.2.14'
 gem 'rspec'