submodule: bump openthread from 58b230f to 37144f0

Bumps [openthread](https://github.com/openthread/openthread) from `58b230f` to `37144f0`.
- [Release notes](https://github.com/openthread/openthread/releases)
- [Commits](openthread/openthread@58b230f...37144f0)

---
updated-dependencies:
- dependency-name: openthread
  dependency-type: direct:production
...

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