build(deps): bump Externals/sse2neon from 1a854ed to 29716df

Bumps [Externals/sse2neon](https://github.com/DLTcollab/sse2neon) from `1a854ed` to `29716df`.
- [Release notes](https://github.com/DLTcollab/sse2neon/releases)
- [Commits](DLTcollab/sse2neon@1a854ed...29716df)

---
updated-dependencies:
- dependency-name: Externals/sse2neon
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>