Release 8.3.0 (#670)

- Add PaymentSetup accommodation/airline fields (totalNumberOfGuests, refundable, deliveryRecipient, host, totalNumberOfPassengers, travelType, tripType, ancillaries, insurance)
- Fix industry.airline and industry.accommodation serializing under the wrong keys on payment setups

Author: armando-rodriguez-cko

gradle.properties

@@ -1,5 +1,5 @@
 group=com.checkout
-version=8.2.1
+version=8.3.0
 
 project_name=Checkout SDK Java
 project_description=Checkout SDK for Java https://checkout.com