Bump third_party/perfetto/repo from `b9aca8f` to `ba40a4d` #2350

Job	Run time
Unit / Integration Tests (main)	1m 49s
Unit / Integration Tests (clang)	3m 27s
Unit / Integration Tests (mbedtls)	1m 39s
Unit / Integration Tests (rotating_device_id)	38s
Unit / Integration Tests (icd)	2m 45s
	10m 18s

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