2c/ Update car launcher to reflect change to GroupedTaskInfo

- No behavior change from the type change, other than removing
  deprecated usage of setLastSnapshotData()

Bug: 346588978
Flag: EXEMPT adding new flag enable_shell_top_task_tracking
Test: m CarLauncher CarLauncherTests
Test: atest WMShellUnitTests
Change-Id: Ib86fc47bbc610bcef94963c540b4bab64502e034
2 files changed