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Bump third_party/pigweed/repo from `1f12d06` to `bbe5cd6` #1206

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Run time

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Job	Run time
Chef - ESP32 CI Examples	8m 29s
Chef - Linux CI Examples	6m 2s
Chef - NRFConnect CI Examples	12m 3s
Chef - Telink CI Examples	11m 43s
	38m 17s