submodule: bump openthread from `2129daa` to `be8383b` (#182)
submodule: bump openthread from `2129daa` to `be8383b` (#182)

Bumps [openthread](https://github.com/openthread/openthread) from `2129daa` to `be8383b`.
- [Commits](https://github.com/openthread/openthread/compare/2129daaf21902b93829d929103ce15b8e8ec14dc...be8383bc5a0bdb1cf2c7d3d12414d50d69fd0b70)

---
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-kw41z,openthread/ot-kw41z