submodule: bump openthread from `1267bdb` to `8048839` (#173)
submodule: bump openthread from `1267bdb` to `8048839` (#173)

Bumps [openthread](https://github.com/openthread/openthread) from `1267bdb` to `8048839`.
- [Commits](https://github.com/openthread/openthread/compare/1267bdbf6897813ecd7c197df5d45cfe36027d21...8048839206f443adda5485c0dca24b3c9eca9098)

---
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-cc13x2-cc26x2,openthread/ot-cc13x2-cc26x2