(maint) Update Rake to ~> 13.0

Versions of Rake prior to 13.0 had issues with the keyword argument
syntax of newer (>= 2.7) Rubies. This commit updates the Gemfile to
allow the installation of Rake >= 13.0 < 14.0

Author: mhashizume

Gemfile

@@ -13,7 +13,7 @@ end
 gem 'artifactory'
 gem 'vanagon', *location_for(ENV['VANAGON_LOCATION'] || '~> 0.28')
 gem 'packaging', *location_for(ENV['PACKAGING_LOCATION'] || '~> 0.105')
-gem 'rake', '~> 12.0'
+gem 'rake', '~> 13.0'
 
 group(:development, optional: true) do
   gem 'highline', require: false