Require MFA in the gem specification

Author: jrafanie

activerecord-id_regions.gemspec

@@ -7,7 +7,7 @@ Gem::Specification.new do |spec|
   spec.name          = "activerecord-id_regions"
   spec.version       = ActiveRecord::IdRegions::VERSION
   spec.authors       = ["ManageIQ Developers"]
-
+  spec.metadata['rubygems_mfa_required'] = 'true'
   spec.summary       = %q{ActiveRecord extension to allow partitioning ids into regions, for merge replication purposes}
   spec.description   = %q{ActiveRecord extension to allow partitioning ids into regions, for merge replication purposes}
   spec.homepage      = "https://github.com/ManageIQ/activerecord-id_regions"