data: add naive maintenance task to cold storage dol

app/tasks/maintenance/move_dol_to_cold_storage_task.rb

@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+module Maintenance
+  class MoveDolToColdStorageTask < MaintenanceTasks::Task
+    attribute :start_text, :string
+    validates :start_text, presence: true
+
+    attribute :end_text, :string
+    validates :end_text, presence: true
+
+    def collection
+      start_date = DateTime.parse(start_text)
+      end_date = DateTime.parse(end_text)
+      # Collection to be iterated over
+      # Must be Active Record Relation or Array
+      DossierOperationLog.where(created_at: start_date..end_date)
+    end
+
+    def process(dol)
+      return if dol.data.nil?
+
+      dol.move_to_cold_storage!
+    end
+  end
+end