submodule: bump openthread from `934448d` to `9ea34d1` (#142)
submodule: bump openthread from `934448d` to `9ea34d1` (#142)

Bumps [openthread](https://github.com/openthread/openthread) from `934448d` to `9ea34d1`.
- [Commits](https://github.com/openthread/openthread/compare/934448db6a16bea3654e08a0e6f56928593ae36d...9ea34d1e2053b6b2a80e1d46b65a6aee99fc504a)

---
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-nrf528xx,openthread/ot-nrf528xx