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Bump third_party/ot-br-posix/repo from `636e53d` to `03132d3` #431

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Job	Run time
Chef - ESP32 CI Examples	9m 3s
Chef - Linux CI Examples	6m 16s
Chef - NRFConnect CI Examples	9m 8s
Chef - Telink CI Examples	7m 34s
	32m 1s