Introduce new migration to re-schedule background jobs

This commit marks the `ScheduleLatestPipelineIdPopulation` as no-op and
introduces a new one to re-run the same migration.

db/post_migrate/20210602164044_schedule_latest_pipeline_id_population.rb

 # frozen_string_literal: true
 
 class ScheduleLatestPipelineIdPopulation < ActiveRecord::Migration[6.1]
-  include Gitlab::Database::MigrationHelpers
-
-  DOWNTIME = false
-  DELAY_INTERVAL = 2.minutes.to_i
-  BATCH_SIZE = 100
-  MIGRATION = 'PopulateLatestPipelineIds'
-
-  disable_ddl_transaction!
-
   def up
-    return unless Gitlab.ee?
-
-    queue_background_migration_jobs_by_range_at_intervals(
-      Gitlab::BackgroundMigration::PopulateLatestPipelineIds::ProjectSetting.has_vulnerabilities_without_latest_pipeline_set,
-      MIGRATION,
-      DELAY_INTERVAL,
-      batch_size: BATCH_SIZE,
-      primary_column_name: 'project_id'
-    )
+    # no-op: This migration has been marked as no-op and replaced by
+    # `ReScheduleLatestPipelineIdPopulation` as we've found some problems.
+    # For more information: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/65280
   end
 
   def down

db/post_migrate/20210706142819_re_schedule_latest_pipeline_id_population.rb

+# frozen_string_literal: true
+
+class ReScheduleLatestPipelineIdPopulation < ActiveRecord::Migration[6.1]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+  DELAY_INTERVAL = 2.minutes.to_i
+  BATCH_SIZE = 100
+  MIGRATION = 'PopulateLatestPipelineIds'
+
+  disable_ddl_transaction!
+
+  def up
+    return unless Gitlab.ee?
+
+    queue_background_migration_jobs_by_range_at_intervals(
+      Gitlab::BackgroundMigration::PopulateLatestPipelineIds::ProjectSetting.has_vulnerabilities_without_latest_pipeline_set,
+      MIGRATION,
+      DELAY_INTERVAL,
+      batch_size: BATCH_SIZE,
+      primary_column_name: 'project_id'
+    )
+  end
+
+  def down
+    # no-op
+  end
+end

db/schema_migrations/20210706142819

+ed0daff7120cbdba2f0e9ca1f2e40c11114bb2c7db4543903d16891ffbbba3f8
\ No newline at end of file

spec/migrations/schedule_latest_pipeline_id_population_spec.rb → spec/migrations/re_schedule_latest_pipeline_id_population_spec.rb

@@ -3,7 +3,7 @@
 require 'spec_helper'
 require_migration!
 
-RSpec.describe ScheduleLatestPipelineIdPopulation do
+RSpec.describe ReScheduleLatestPipelineIdPopulation do
   let(:namespaces) { table(:namespaces) }
   let(:pipelines) { table(:ci_pipelines) }
   let(:projects) { table(:projects) }