Bump wasmtime from 6.0.1 to 6.0.2 in /tools/runtime-codegen

Bumps [wasmtime](https://github.com/bytecodealliance/wasmtime) from 6.0.1 to 6.0.2.
- [Release notes](https://github.com/bytecodealliance/wasmtime/releases)
- [Changelog](https://github.com/bytecodealliance/wasmtime/blob/main/docs/WASI-some-possible-changes.md)
- [Commits](bytecodealliance/wasmtime@v6.0.1...v6.0.2)

---
updated-dependencies:
- dependency-name: wasmtime
  dependency-type: indirect
...

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