Build

submodule: bump openthread from `03113e8` to `c5ad131` #1999

Job	Run time
Docker / metadata / Generate required metadata	1s
Docker / Build	3m 37s
Docker / Tag `latest` and publish to DockerHub	0s
Arm GNU Toolchain 12.2.Rel1	8m 32s
Arm GNU Toolchain 12.3.Rel1	8m 27s
	20m 37s

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