submodule: bump openthread from `9f30e04` to `5ee837e` (#268)
submodule: bump openthread from `9f30e04` to `5ee837e` (#268)

Bumps [openthread](https://github.com/openthread/openthread) from `9f30e04` to `5ee837e`.
- [Commits](https://github.com/openthread/openthread/compare/9f30e0498141efbff10569f57f9353f02a0d7856...5ee837efbbbba941671d6c4ffe31aa233fd5f855)

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

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
openthread/ot-efr32,openthread/ot-efr32,openthread/ot-efr32