Bump wasmtime from 26.0.1 to 27.0.0 in /native/wasmex

Bumps [wasmtime](https://github.com/bytecodealliance/wasmtime) from 26.0.1 to 27.0.0.
- [Release notes](https://github.com/bytecodealliance/wasmtime/releases)
- [Changelog](https://github.com/bytecodealliance/wasmtime/blob/v27.0.0/RELEASES.md)
- [Commits](bytecodealliance/wasmtime@v26.0.1...v27.0.0)

---
updated-dependencies:
- dependency-name: wasmtime
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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