Bump third_party/perfetto/repo from `b9aca8f` to `9a3ec11` #1509

Job	Run time
Unit / Integration Tests (main)	4m 12s
Unit / Integration Tests (clang)	5m 6s
Unit / Integration Tests (mbedtls)	8m 29s
Unit / Integration Tests (rotating_device_id)	3m 32s
	21m 19s

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