App crashes when downloading offline region after upgrading to 5.3.2

[nijs9]

**Platform:Android
**Mapbox SDK version:5.3.2

Steps to trigger behavior

1. Define OfflineRegion
2. Download OfflineRegion

Expected behavior

Region downloading

Actual behavior

I upgraded from version 5.1.5 tot 5.3.2. Code for downloading offline region is not working anymore after this upgrade. I'm using the demo code (https://github.com/mapbox/mapbox-android-demo/blob/master/MapboxAndroidDemo/src/main/java/com/mapbox/mapboxandroiddemo/examples/offline/OfflineManagerActivity.java).

The app crashes after calling offlineManager.createOfflineRegion, and I see this error:

A/art: art/runtime/java_vm_ext.cc:470] JNI DETECTED ERROR IN APPLICATION: JNI GetMethodID called with pending exception java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare() A/art: art/runtime/java_vm_ext.cc:470] at void android.os.Handler.<init>(android.os.Handler$Callback, boolean) (Handler.java:200) A/art: art/runtime/java_vm_ext.cc:470] at void android.os.Handler.<init>() (Handler.java:114) A/art: art/runtime/java_vm_ext.cc:470] at void com.mapbox.mapboxsdk.offline.OfflineRegion.<init>(long, com.mapbox.mapboxsdk.storage.FileSource, long, com.mapbox.mapboxsdk.offline.OfflineRegionDefinition, byte[]) (OfflineRegion.java:54)

[tobrun]

@nijs9 thank you for the report, this is fixed with #11021. As workaround for now you can use 5.3.1 until 5.3.3 lands.