submodule: bump third_party/openthread/repo from `e0a1987` to `c74ba05` (#849)
submodule: bump third_party/openthread/repo from `e0a1987` to `c74ba05` (#849)

Bumps [third_party/openthread/repo](https://github.com/openthread/openthread) from `e0a1987` to `c74ba05`.
- [Commits](https://github.com/openthread/openthread/compare/e0a1987336de203cdae30f06ff16cc2309817387...c74ba05c443fb05bb45fdbaed9da464cf6111e8b)

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

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
openthread/ot-br-posix,openthread/ot-br-posix,openthread/borderrouter,openthread/borderrouter,openthread/borderrouter,openthread/borderrouter,openthread/ot-br-posix,openthread/ot-br-posix,openthread/borderrouter,openthread/ot-br-posix,openthread/borderrouter,openthread/ot-br-posix