brew vendor-gems: commit updates.

Library/Homebrew/vendor/bundle/bundler/setup.rb

@@ -4,7 +4,7 @@ ruby_engine = defined?(RUBY_ENGINE) ? RUBY_ENGINE : 'ruby'
 ruby_version = RbConfig::CONFIG["ruby_version"]
 path = File.expand_path('..', __FILE__)
 $:.unshift "#{path}/../#{ruby_engine}/#{ruby_version}/gems/concurrent-ruby-1.1.5/lib"
-$:.unshift "#{path}/../#{ruby_engine}/#{ruby_version}/gems/i18n-1.7.1/lib"
+$:.unshift "#{path}/../#{ruby_engine}/#{ruby_version}/gems/i18n-1.8.1/lib"
 $:.unshift "#{path}/../#{ruby_engine}/#{ruby_version}/gems/minitest-5.13.0/lib"
 $:.unshift "#{path}/../#{ruby_engine}/#{ruby_version}/gems/thread_safe-0.3.6/lib"
 $:.unshift "#{path}/../#{ruby_engine}/#{ruby_version}/gems/tzinfo-1.2.6/lib"

Library/Homebrew/vendor/bundle/ruby/2.6.0/gems/i18n-1.8.1/lib/i18n/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module I18n
-  VERSION = "1.7.1"
+  VERSION = "1.8.1"
 end