Merge branch '199424-failures-in-spec-lib-gitlab-database-migration_helpers_spec-rb' into 'master'

Add a `class_name: "::Project"` to a `belongs_to :project` in a spec

Closes #199424

See merge request gitlab-org/gitlab!23979

spec/lib/gitlab/database/migration_helpers_spec.rb

@@ -1541,7 +1541,7 @@ describe Gitlab::Database::MigrationHelpers do
       self.table_name = 'issues'
       self.inheritance_column = :_type_disabled
 
-      belongs_to :project
+      belongs_to :project, class_name: "::Project"
 
       has_internal_id :iid,
         scope: :project,