Bumped rake version (CVE-2020-8130)

Author: jaaufauvre

mastercard-client-encryption.gemspec

@@ -16,6 +16,6 @@ Gem::Specification.new do |spec|
 
   spec.add_development_dependency 'bundler', '>= 1.5'
   spec.add_development_dependency 'minitest', '~> 5.0'
-  spec.add_development_dependency 'rake', '~> 10.0'
+  spec.add_development_dependency 'rake', '>= 12.3.3'
   spec.add_development_dependency 'simplecov', '~> 0.16.1'
 end