next.js

f37f11ef - Tests: Mirror arguments and environment between `next.build()` and `next.start()` (#83393)

Tests: Mirror arguments and environment between `next.build()` and `next.start()` (#83393) ## What? Preparation for swapping the special logic in `start()` to using `build()` directly. The build() method now respects buildCommand and `NEXT_SKIP_ISOLATE` settings that it previously ignored.