[AppInfo] Enable logs for debugging unexpected AppInfo changes.

Here's a sample log run through of AllAppsStore and PackageUpdatedTask
logs: http://gpaste/5250747917664256

Bug: b/290090023
Flag: None. Adding logging.
Test: None. Adding logging.
Change-Id: Ia1d620a50267d6a65fe719936d7e87e6dad13afa

src/com/android/launcher3/model/PackageUpdatedTask.java

@@ -44,7 +44,6 @@ import com.android.launcher3.model.data.WorkspaceItemInfo;
 import com.android.launcher3.pm.PackageInstallInfo;
 import com.android.launcher3.pm.UserCache;
 import com.android.launcher3.shortcuts.ShortcutRequest;
-import com.android.launcher3.testing.shared.TestProtocol;
 import com.android.launcher3.util.FlagOp;
 import com.android.launcher3.util.IntSet;
 import com.android.launcher3.util.ItemInfoMatcher;
@@ -68,7 +67,8 @@ import java.util.stream.Collectors;
  */
 public class PackageUpdatedTask extends BaseModelUpdateTask {
 
-    private static boolean DEBUG = false;
+    // TODO(b/290090023): Set to false after root causing is done.
+    private static final boolean DEBUG = true;
     private static final String TAG = "PackageUpdatedTask";
 
     public static final int OP_NONE = 0;