feat(openthread): update thread-lib for upstream b678a4f6

* esp-openthread: thread_zigbee/esp-openthread@47428f1e8
* openthread: espressif/openthread@b678a4f63
* esp-idf: espressif/esp-idf@3871860a4
This commit is contained in:
Xu Si Yu
2026-07-08 12:54:27 +00:00
parent 3871860a45
commit 779a53a262