Fix duplicate spec in update large table spec

.rubocop.yml

@@ -400,6 +400,5 @@ RSpec/RepeatedExample:
     - 'spec/lib/gitlab/closing_issue_extractor_spec.rb'
     - 'spec/lib/gitlab/danger/changelog_spec.rb'
     - 'spec/lib/gitlab/import_export/project/relation_factory_spec.rb'
-    - 'spec/rubocop/cop/migration/update_large_table_spec.rb'
     - 'spec/services/notification_service_spec.rb'
     - 'spec/services/web_hook_service_spec.rb'

changelogs/unreleased/update-large-table-spec.yml

+---
+title: Update duplicate specs in update large table spec
+merge_request: 28787
+author: Rajendra Kadam
+type: added

spec/rubocop/cop/migration/update_large_table_spec.rb

@@ -76,14 +76,14 @@ describe RuboCop::Cop::Migration::UpdateLargeTable do
       expect(cop.offenses).to be_empty
     end
 
-    it 'registers no offense for update_column_in_batches' do
+    it 'registers no offense for rename_column_concurrently' do
       inspect_source("rename_column_concurrently :#{table}, :column, default: true")
 
       expect(cop.offenses).to be_empty
     end
 
-    it 'registers no offense for update_column_in_batches' do
-      inspect_source("add_column_with_default :#{table}, :column, default: true")
+    it 'registers no offense for update_column_concurrently' do
+      inspect_source("update_column_concurrently :#{table}, :column, default: true")
 
       expect(cop.offenses).to be_empty
     end