message: [cli] Use updated SSO auth URL for login
  The `/registration` prefix is no longer necessary.
diff: @@ -19,11 +19,11 @@ export default async function doSsoLogin(
  const tokenName = `${getTitleName()} CLI on ${host}`;
  const server = http.createServer();
  - const address = await listen(server);
  + const address = await listen(server, 0, '127.0.0.1');
  const { port } = new URL(address);
  try {
  - const url = new URL('/registration/sso/auth', apiUrl);
  + const url = new URL('/auth/sso', apiUrl);
  url.searchParams.append('mode', 'login');
  url.searchParams.append('next', `http://localhost:${port}`);
  url.searchParams.append('teamId', teamIdOrSlug);
  