Android: Fixed a couple other LocalRef issues in the IAP code

modules/juce_product_unlocking/native/juce_android_InAppPurchases.cpp

@@ -510,7 +510,7 @@ struct InAppPurchases::Pimpl    : private AsyncUpdater,
                               const Callback& callbackToUse)
             : ThreadPoolJob ("GetProductsBoughtJob"),
               owner (parent),
-              packageName (LocalRef<jobject> (packageNameToUse.get())),
+              packageName (LocalRef<jobject> (getEnv()->NewLocalRef (packageNameToUse.get()))),
               callback (callbackToUse)
         {}
 
@@ -632,7 +632,7 @@ struct InAppPurchases::Pimpl    : private AsyncUpdater,
                             const Callback& callbackToUse)
             : ThreadPoolJob ("ConsumePurchaseJob"),
               owner (parent),
-              packageName (LocalRef<jobject> (packageNameToUse.get())),
+              packageName (LocalRef<jobject> (getEnv()->NewLocalRef (packageNameToUse.get()))),
               productIdentifier (productIdentifierToUse),
               purchaseToken (purchaseTokenToUse),
               callback (callbackToUse)