submodule: bump openthread from `3350f59` to `2b2534c` (#186)
submodule: bump openthread from `3350f59` to `2b2534c` (#186)

Bumps [openthread](https://github.com/openthread/openthread) from `3350f59` to `2b2534c`.
- [Commits](https://github.com/openthread/openthread/compare/3350f598f6759fd7de0c80845a925197458d0420...2b2534cc76a3d86af4d4895b2433d08d19663b38)

---
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-b91,openthread/ot-b91