message: Fix/incorrect time comparison test
  * add 100ms to remove-old-sent-notifications-test because the comparison is <, not <=
  * Don't try to cast to utc strings
  This messes up pg's dates
diff: @@ -45,19 +45,19 @@ describe('RemoveOldSentNotificationsTask', function () {
  this.beforeEach(async function () {
  db = await (await getContainer().lookup('database-manager')).getClient();
  - // 7 days old, old
  + // 7 days 100ms, old
  for (let item of ['old 1', 'old 2']) {
  await db.query('INSERT INTO sent_push_notifications (notification_id, created_at) VALUES($1, $2)', [
  item,
  - new Date(Date.now() - 7 * 24 * 60 * 60 * 1000).toUTCString(),
  + new Date(Date.now() - 7 * 24 * 60 * 60 * 1000 - 100),
  ]);
  }
  - // 6 days old, not old yet
  + // 6 days, not old yet
  for (let item of ['recent 1', 'recent 2']) {
  await db.query('INSERT INTO sent_push_notifications (notification_id, created_at) VALUES($1, $2)', [
  item,
  - new Date(Date.now() - 6 * 24 * 60 * 60 * 1000).toUTCString(),
  + new Date(Date.now() - 6 * 24 * 60 * 60 * 1000),
  ]);
  }
  