Inheriting from `RuboCop::Cop::Cop` is deprecated. Use `RuboCop::Cop::Base` instead

[Laykou]

I am receiving following message when using with Rubocop validations:

database_validations-1.1.1/lib/database_validations/rubocop/cop/belongs_to.rb:13: warning: Inheriting from `RuboCop::Cop::Cop` is deprecated. Use `RuboCop::Cop::Base` instead.

[sillyent0138]

database_validations-1.1.1/lib/database_validations/rubocop/cop/belongs_to.rb:13: warning: Inheriting from RuboCop::Cop::Cop is deprecated. Use RuboCop::Cop::Base instead.