submodule: bump openthread from `5370023` to `3d4f617` (#329)
submodule: bump openthread from `5370023` to `3d4f617` (#329)

Bumps [openthread](https://github.com/openthread/openthread) from `5370023` to `3d4f617`.
- [Commits](https://github.com/openthread/openthread/compare/537002352faf934f353af30021b689e75fb7aa78...3d4f617a00e63d09bedbe57cb042ebad74c023f0)

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

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

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
openthread/ot-b91,openthread/ot-b91