update turbopack (#59285)
* https://github.com/vercel/turbo/pull/6588 <!-- Leah - ci: remove daily
turbopack next.js integration test workflow -->
* https://github.com/vercel/turbo/pull/6666 <!-- Will Binns-Smith -
Turbopack css: treat `composes` and `@import` as urls when resolving -->
* https://github.com/vercel/turbo/pull/6701 <!-- Tobias Koppers - add
user level tracing -->
* https://github.com/vercel/turbo/pull/6616 <!-- Leah - feat(turbopack):
support "loading" WebAssembly injected as global varables in edge
runtime -->
Closes PACK-2086
