submodule: bump openthread from `d2f18d5` to `f3774e3` (#65)
submodule: bump openthread from `d2f18d5` to `f3774e3` (#65)

Bumps [openthread](https://github.com/openthread/openthread) from `d2f18d5` to `f3774e3`.
- [Commits](https://github.com/openthread/openthread/compare/d2f18d5ebc194e5086f2041218dbb160824ebb69...f3774e3368a5656ba2aa994276a1f1dca6ed734c)

---
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-ifx,openthread/ot-ifx,Infineon/ot-ifx-release,openthread/ot-ifx,Infineon/ot-ifx-release,Infineon/ot-ifx-release