Update changed signals

Old signals in doc does not exist

tutorials/platform/android/android_in_app_purchases.rst

@@ -48,8 +48,8 @@ Initialization example:
             payment.price_change_acknowledged.connect(_on_price_acknowledged) # Response ID (int)
             payment.purchases_updated.connect(_on_purchases_updated) # Purchases (Dictionary[])
             payment.purchase_error.connect(_on_purchase_error) # Response ID (int), Debug message (string)
-            payment.product_details_query_completed.connect(_on_product_details_query_completed) # Products (Dictionary[])
-            payment.product_details_query_error.connect(_on_product_details_query_error) # Response ID (int), Debug message (string), Queried SKUs (string[])
+            payment.sku_details_query_completed.connect(_on_product_details_query_completed) # Products (Dictionary[])
+            payment.sku_details_query_error.connect(_on_product_details_query_error) # Response ID (int), Debug message (string), Queried SKUs (string[])
             payment.purchase_acknowledged.connect(_on_purchase_acknowledged) # Purchase token (string)
             payment.purchase_acknowledgement_error.connect(_on_purchase_acknowledgement_error) # Response ID (int), Debug message (string), Purchase token (string)
             payment.purchase_consumed.connect(_on_purchase_consumed) # Purchase token (string)