[AA+] Logs LAUNCHER_ALLAPPS_ITEM_LONG_PRESSED event. am: e9fe7f2789

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/13682552

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ica58cfc23bb522452e36b49efa92cafd39b20b49