[pm/metrics][6/n] log install failures

snapshot is no longer needed because the installerPackageUid is now part
of InstallSource, which we can log for both succeeded and failed
installs.

Notice that we still need to track verification errors.

BUG: 249294752
Test: manual
Change-Id: I9a39888d7bb1b200ac9e77c596b0560cf96a36b5