submodule: bump openthread from `6eff683` to `3fdaaab` (#144)
submodule: bump openthread from `6eff683` to `3fdaaab` (#144)

Bumps [openthread](https://github.com/openthread/openthread) from `6eff683` to `3fdaaab`.
- [Commits](https://github.com/openthread/openthread/compare/6eff68336943ec65fc991f9c06b7186bdda9cc71...3fdaaab07c2dc3d322d0b4f8a31c812330be6e3a)

---
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