Backfill default protection branch defaults in application setting

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Backfill default protection branch defaults in application setting

This commit backfills default protection branch defaults in application setting

Changelog: other

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Related to #408152 (closed)

db/migrate/20231108081209_backfill_branch_protection_application_setting.rb

@@ -5,7 +5,7 @@
 
 class BackfillBranchProtectionApplicationSetting < Gitlab::Database::Migration[2.2]
   restrict_gitlab_migration gitlab_schema: :gitlab_main
-  milestone '16.6'
+  milestone '16.9'
 
   class ApplicationSetting < MigrationRecord
     self.table_name = 'application_settings'