Build

submodule: bump openthread from `af2c77e` to `b42be4c` #2095

Job	Run time
Docker / metadata / Generate required metadata	1s
Docker / Build	3m 17s
Arm GNU Toolchain 12.2.Rel1	18m 37s
Arm GNU Toolchain 12.3.Rel1	19m 54s
DockerHub Publish	0s
	41m 49s

Provide feedback