Bump third_party/pigweed/repo from `1f12d06` to `4f0412d` #940

Job	Run time
Unit / Integration Tests (main)	1m 45s
Unit / Integration Tests (clang)	1m 15s
Unit / Integration Tests (mbedtls)	1m 49s
Unit / Integration Tests (rotating_device_id)	1m 13s
Unit / Integration Tests (icd)	1m 43s
	7m 45s

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