message: fix branch name for deleted branches
diff: @@ -17,7 +17,7 @@ export async function gitlabBranchDeleted(webhook: WebhookRequestData, siteGrou
  } = webhook;
  const meta = {
  - branch: body.ref.replace('ref/heads/','')
  + branch: body.ref.replace('refs/heads/','')
  }
  const data: removeData = {
  