bug(android/engine): JSONException: Value [] of type org.json.JSONArray cannot be converted to JSONObject

[sentry]

Hopefully this is low-hanging fruit that can be fixed early in B16S1

Sentry Issue: KEYMAN-ANDROID-MH

JSONException: Value [] of type org.json.JSONArray cannot be converted to JSONObject
    at org.json.JSON.typeMismatch(JSON.java:112)
    at org.json.JSONObject.<init>(JSONObject.java:172)
    at org.json.JSONObject.<init>(JSONObject.java:185)
    at com.tavultesoft.kmea.JSONParser.getJSONObjectFromReader(JSONParser.java:46)
    at com.tavultesoft.kmea.JSONParser.getJSONObjectFromFile(JSONParser.java:89)
...
(17 additional frame(s) were not displayed)

[darcywong00]

Fixed in 16.0 beta by #7611