Bump fakefs dependency

- Move to FakeFS 3.2, which fixes some underlying test issues
- Drop the irb dependency since FakeFS no longer needs it

# Conflicts:
#	CHANGELOG.md

Author: faisal

CHANGELOG.md

@@ -5,6 +5,7 @@
 * [CHORE] ...
 * [FEATURE] ...
 
+* [CHORE] Bump fakefs (by [@faisal][])
 * [CHORE] Run Markdown linting in CI using Ruby 4.0 (by [@faisal][])
 * [CHORE] In RubyCritic::Generator::Html::Line, require cgi/escape rather than cgi, as the latter is removed from Ruby 4.0 (by [@faisal][])
 * [CHORE] Start testing library with Ruby 4.0 (by [@etagwerker][])

rubycritic.gemspec

@@ -54,8 +54,7 @@ Gem::Specification.new do |spec|
   end
   spec.add_development_dependency 'cucumber', '~> 10.2.0', '>= 10.1.0'
   spec.add_development_dependency 'diff-lcs', '~> 1.3'
-  spec.add_development_dependency 'fakefs', '~> 3.0.0'
-  spec.add_development_dependency 'irb'
+  spec.add_development_dependency 'fakefs', '~> 3.2.0'
   spec.add_development_dependency 'mdl', '~> 0.13.0', '>= 0.12.0'
   spec.add_development_dependency 'minitest', '~> 5.26.0', '>= 5.3.0'
   spec.add_development_dependency 'minitest-around', '~> 0.5.0', '>= 0.4.0'