Update bundler for pre-bundling runtime (#75294)
This improves the build script quite a bit and makes dev editing much
faster. Also fixed excludes causing webpack/babel compiled packages to
be bundled into the runtime un-necessarily reducing from `10MB` ->
`1.2MB`.
Before: `Finished next_bundle in 9.67s`
After: `Finished next_bundle in 1.27s`
Validated here
https://github.com/vercel/vercel/actions/runs/12957911052/job/36147343396?pr=12914
