Bump third_party/pigweed/repo from `d5fcc90` to `3d0fac9` #2350

Job	Run time
Unit / Integration Tests (main)	15m 2s
Unit / Integration Tests (clang)	16m 56s
Unit / Integration Tests (mbedtls)	16m 52s
Unit / Integration Tests (rotating_device_id)	14m 57s
Unit / Integration Tests (icd)	44m 58s
	1h 48m 45s

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