Use migration-level lock-retries

db/migrate/20210902171406_add_latest_column_into_the_security_scans_table.rb

 # frozen_string_literal: true
 
 class AddLatestColumnIntoTheSecurityScansTable < Gitlab::Database::Migration[1.0]
+  enable_lock_retries!
+
   def up
-    with_lock_retries do
-      add_column :security_scans, :latest, :boolean, default: true, null: false
-    end
+    add_column :security_scans, :latest, :boolean, default: true, null: false
   end
 
   def down
-    with_lock_retries do
-      remove_column :security_scans, :latest
-    end
+    remove_column :security_scans, :latest
   end
 end