This PR update the tests suite to wait for Vercel CLI tarball and then use that tarball to run E2E tests.
This is valuable because it will package all the packages in this monorepo to make the tests follow more closely what will happen in production once merged.
Since the current "Find Changes" step takes about 2 minutes, we run that first (it happens concurrently with the tarball preparation). Then once we complete "Find Changes" we wait for the tarball but it will likely be ready by that point since it also takes about 2 minutes. After both of those steps, the E2E tests continue as usual but with the `VERCEL_CLI_VERSION` set to the tarball.
- Related to #7967
- Closes#8245
- Closes#8227
The `@vercel/build-utils` package was meant be shared functions necessary for writing a Vercel Builder (aka Runtime).
This package has since bloated into the catch-all package for anything that wasn't a Builder.
This PR removes the bloat in favor of a new package, `@vercel/fs-detectors`. It also removes the need for `@vercel/build-utils` to have a dependency on `@vercel/frameworks`.
- Related to #7951
