[metrics] add uid in PackageInstallerV2 atom

Metrics Eldar reviewed: https://eldar.corp.google.com/assessments/270373150/drafts/493471107

BUG: 187455299
Test: atest com.android.cts.packagemanager.stats.host.PackageInstallerV2StatsTests
Change-Id: Ie339a7a9c1c999aeec9841e9010041a58d4507ed
1 file changed
tree: 1e303c1e518dec7c8208e601bd0fa0b2abfd6a8e
  1. stats/
  2. OWNERS