message: [cli] Replace now.sh tests with vercel.app
diff: @@ -2726,7 +2726,7 @@ test('fail to deploy a Lambda with a specific runtime but without a locked versi
  });
  test('fail to add a domain without a project', async t => {
  - const output = await execute(['domains', 'add', 'my-domain.now.sh']);
  + const output = await execute(['domains', 'add', 'my-domain.vercel.app']);
  t.is(output.exitCode, 1, formatOutput(output));
  t.regex(output.stderr, /expects two arguments/gm, formatOutput(output));
  });
  @@ -2759,7 +2759,7 @@ test('change user', async t => {
  });
  test('assign a domain to a project', async t => {
  - const domain = `project-domain.${contextName}.now.sh`;
  + const domain = `project-domain.${contextName}.vercel.app`;
  const directory = fixture('static-deployment');
  const deploymentOutput = await execute([directory, '--public', '--confirm']);
  