message: [tests] Fix app-dir test assertion
  This was changed in `next@canary`
diff: @@ -26,7 +26,7 @@ if (parseInt(process.versions.node.split('.')[0], 10) >= 16) {
  }
  }
  - expect(lambdas.size).toBe(2);
  + expect(lambdas.size).toBe(1);
  expect(buildResult.output['dashboard']).toBeDefined();
  expect(buildResult.output['dashboard/another']).toBeDefined();
  expect(buildResult.output['dashboard/changelog']).toBeDefined();
  