Crash while using on Android 11

This happens on the latest ProcessPhoenix 2.1.2, as it is on a launcher, it starts up when the device boots up. Once dismissing the force close dialog, the app works fine and ProcessPhoenix continues to work.

```
02-20 01:42:58.499 10525 10525 E AndroidRuntime: FATAL EXCEPTION: main
02-20 01:42:58.499 10525 10525 E AndroidRuntime: Process: projekt.auto:phoenix, PID: 10525
02-20 01:42:58.499 10525 10525 E AndroidRuntime: java.lang.RuntimeException: Unable to start activity ComponentInfo{projekt.auto/com.jakewharton.processphoenix.ProcessPhoenix}: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean com.android.server.wm.Task.isActivityTypeStandardOrUndefined()' on a null object reference
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3450)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3602)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2067)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:106)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.os.Looper.loop(Looper.java:223)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:7697)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:952)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean com.android.server.wm.Task.isActivityTypeStandardOrUndefined()' on a null object reference
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.os.Parcel.createExceptionOrNull(Parcel.java:2379)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.os.Parcel.createException(Parcel.java:2357)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.os.Parcel.readException(Parcel.java:2340)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.os.Parcel.readException(Parcel.java:2282)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.app.IActivityTaskManager$Stub$Proxy.startActivities(IActivityTaskManager.java:3730)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.app.Instrumentation.execStartActivitiesAsUser(Instrumentation.java:1798)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.app.Instrumentation.execStartActivities(Instrumentation.java:1747)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.app.Activity.startActivities(Activity.java:5708)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.app.Activity.startActivities(Activity.java:5681)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at com.jakewharton.processphoenix.ProcessPhoenix.onCreate(ProcessPhoenix.java:4)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.app.Activity.performCreate(Activity.java:8000)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.app.Activity.performCreate(Activity.java:7984)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1310)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3423)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: ... 11 more
02-20 01:42:58.499 10525 10525 E AndroidRuntime: Caused by: android.os.RemoteException: Remote stack trace:
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at com.android.server.wm.ActivityStackSupervisor.handleNonResizableTaskIfNeeded(ActivityStackSupervisor.java:2245)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at com.android.server.wm.ActivityStackSupervisor.handleNonResizableTaskIfNeeded(ActivityStackSupervisor.java:2232)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at com.android.server.wm.ActivityStarter.startActivityInner(ActivityStarter.java:1750)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at com.android.server.wm.ActivityStarter.startActivityUnchecked(ActivityStarter.java:1526)
02-20 01:42:58.499 10525 10525 E AndroidRuntime: at com.android.server.wm.ActivityStarter.executeRequest(ActivityStarter.java:1190)
02-20 01:42:58.499 10525 10525 E AndroidRuntime:
```

Start with ProcessPhoenix.java at the onCreate location shown in the stack trace and reproduce the launcher-startup path on Android 11. Trace the startActivities call and verify that boot-time startup no longer produces the reported NullPointerException or force-close dialog.

Written by the indexing model from the issue text.