Merge pull request #36 from splitrb/dependabot/bundler/rake-tw-13.0

Update rake requirement from ~> 12.3 to ~> 13.0

Author: andrehjr

split-analytics.gemspec

@@ -19,6 +19,6 @@ Gem::Specification.new do |gem|
   gem.add_dependency('split', '>= 3.0.0')
 
   gem.add_development_dependency('rspec', '~> 3.1')
-  gem.add_development_dependency('rake', '~> 12.3')
+  gem.add_development_dependency('rake', '~> 13.0')
   gem.add_development_dependency('fakeredis', '~> 0.7')
 end