updpatch: chromium 134.0.6998.35-1

- Replace rollup wasm with native one to workaround flaky unreachable
  error.
- Pick swiftshader LLVM 16 build fix from upstream.
- Disable RVV in highway due to broken runtime dispatch
- Pick V8 build fix and two follow-up fixes.
- Regenerate ffmpeg patch
- Fix unistd.h include in sandbox patch (Reported by Revy)
- Tested on centiskorch

Author: kxxt