next.js

cb7769a6 - Wait for `✓ Ready` log in `NextInstance#start` (#67767)

Wait for `✓ Ready` log in `NextInstance#start` (#67767) This may or may not help with the [flakiness](https://app.datadoghq.com/ci/test-runs?query=test_level%3Atest%20env%3Aci%20%40git.repository.id%3Agithub.com%2Fvercel%2Fnext.js%20%40test.service%3Anextjs%20%40test.suite%3A%22tsconfig-path-reloading%22%20%40test.status%3Afail&agg_m=count&agg_m_source=base&agg_t=count&currentTab=overview&eventStack=&fromUser=false&index=citest&start=1713291659981&end=1721067659981&paused=false) of the `tsconfig-path-reloading` test with turbopack. I also found a race condition bug in `packages/next/src/server/lib/router-utils/setup-dev-bundler.ts` after removing an artificial delay of 200ms in the `jsconfig-path-reloading` test.