Build

submodule: bump openthread from `aba7aed` to `b73114c` #1958

Job	Run time
Docker / metadata / Generate required metadata	1s
Docker / Build	3m 10s
Docker / Tag `latest` and publish to DockerHub	0s
Arm GNU Toolchain 12.2.Rel1	16m 54s
Arm GNU Toolchain 12.3.Rel1	16m 32s
	36m 37s

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