Fix typo in error message for IgnorableColumns rubocop error

rubocop/cop/ignored_columns.rb

@@ -19,8 +19,8 @@ module Cop
     #     ignore_column :full_name, remove_after: '2023-05-22', remove_with: '16.0'
     #   end
     class IgnoredColumns < RuboCop::Cop::Base
-      USE_CONCERN_ADD_MSG = 'Use `IgnoredColumns` concern instead of adding to `self.ignored_columns`.'
-      USE_CONCERN_SET_MSG = 'Use `IgnoredColumns` concern instead of setting `self.ignored_columns`.'
+      USE_CONCERN_ADD_MSG = 'Use `IgnorableColumns` concern instead of adding to `self.ignored_columns`.'
+      USE_CONCERN_SET_MSG = 'Use `IgnorableColumns` concern instead of setting `self.ignored_columns`.'
       WRONG_MODEL_MSG = <<~MSG
         If the model exists in CE and EE, the column has to be ignored
         in the CE model. If the model only exists in EE, then it has to be added there.

spec/rubocop/cop/ignored_columns_spec.rb

@@ -4,20 +4,20 @@
 require_relative '../../../rubocop/cop/ignored_columns'
 
 RSpec.describe RuboCop::Cop::IgnoredColumns, feature_category: :database do
-  it 'flags use of `self.ignored_columns +=` instead of the IgnoredColumns concern' do
+  it 'flags use of `self.ignored_columns +=` instead of the IgnorableColumns concern' do
     expect_offense(<<~RUBY)
       class Foo < ApplicationRecord
         self.ignored_columns += %i[id]
-             ^^^^^^^^^^^^^^^ Use `IgnoredColumns` concern instead of adding to `self.ignored_columns`.
+             ^^^^^^^^^^^^^^^ Use `IgnorableColumns` concern instead of adding to `self.ignored_columns`.
       end
     RUBY
   end
 
-  it 'flags use of `self.ignored_columns =` instead of the IgnoredColumns concern' do
+  it 'flags use of `self.ignored_columns =` instead of the IgnorableColumns concern' do
     expect_offense(<<~RUBY)
       class Foo < ApplicationRecord
         self.ignored_columns = %i[id]
-             ^^^^^^^^^^^^^^^ Use `IgnoredColumns` concern instead of setting `self.ignored_columns`.
+             ^^^^^^^^^^^^^^^ Use `IgnorableColumns` concern instead of setting `self.ignored_columns`.
       end
     RUBY
   end