Bump gitlab-styles to 6.6.0

This adds the Performance/Rubyzip cop

.rubocop_manual_todo.yml

@@ -2774,3 +2774,9 @@ GraphQL/ResolverMethodLength:
     - 'app/graphql/types/ci/runner_type.rb'
     - 'app/graphql/types/ci/stage_type.rb'
     - 'app/graphql/types/packages/package_type.rb'
+
+# Issue: https://gitlab.com/gitlab-org/gitlab/-/issues/345673
+Performance/Rubyzip:
+  Exclude:
+    - 'app/services/packages/nuget/metadata_extraction_service.rb'
+    - 'lib/gitlab/ci/artifact_file_reader.rb'

Gemfile

@@ -376,7 +376,7 @@ group :development, :test do
   gem 'spring', '~> 2.1.0'
   gem 'spring-commands-rspec', '~> 1.0.4'
 
-  gem 'gitlab-styles', '~> 6.5.0', require: false
+  gem 'gitlab-styles', '~> 6.6.0', require: false
 
   gem 'haml_lint', '~> 0.36.0', require: false
   gem 'bundler-audit', '~> 0.7.0.1', require: false

Gemfile.lock

@@ -497,7 +497,7 @@ GEM
       openid_connect (~> 1.2)
     gitlab-sidekiq-fetcher (0.8.0)
       sidekiq (~> 6.1)
-    gitlab-styles (6.5.0)
+    gitlab-styles (6.6.0)
       rubocop (~> 0.91, >= 0.91.1)
       rubocop-gitlab-security (~> 0.1.1)
       rubocop-graphql (~> 0.10)
@@ -1479,7 +1479,7 @@ DEPENDENCIES
   gitlab-net-dns (~> 0.9.1)
   gitlab-omniauth-openid-connect (~> 0.8.0)
   gitlab-sidekiq-fetcher (= 0.8.0)
-  gitlab-styles (~> 6.5.0)
+  gitlab-styles (~> 6.6.0)
   gitlab_chronic_duration (~> 0.10.6.2)
   gitlab_omniauth-ldap (~> 2.1.1)
   gon (~> 6.4.0)

app/services/pages/zip_directory_service.rb

@@ -25,7 +25,9 @@ module Pages
       FileUtils.rm_f(output_file)
 
       entries_count = 0
-      ::Zip::File.open(output_file, ::Zip::File::CREATE) do |zipfile|
+      # Since we're writing not reading here, we can safely silence the cop.
+      # It currently cannot discern between opening for reading or writing.
+      ::Zip::File.open(output_file, ::Zip::File::CREATE) do |zipfile| # rubocop:disable Performance/Rubyzip
         write_entry(zipfile, PUBLIC_DIR)
         entries_count = zipfile.entries.count
       end

lib/safe_zip/extract.rb

@@ -25,7 +25,7 @@ module SafeZip
     private
 
     def extract_with_ruby_zip(params)
-      ::Zip::File.open(archive_path) do |zip_archive|
+      ::Zip::File.open(archive_path) do |zip_archive| # rubocop:disable Performance/Rubyzip
         # Extract all files in the following order:
         # 1. Directories first,
         # 2. Files next,