Fixing SunsetAirFlightData reference and test#22

DavidGonzalezPineiro wants to merge 2 commits intoconfluentinc:mainconfluentinc/learn-building-flink-applications-in-java-exercises:mainfrom

DavidGonzalezPineiro:fix/sunsetairflightdata-kafka-source-referenceDavidGonzalezPineiro/learn-building-flink-applications-in-java-exercises:fix/sunsetairflightdata-kafka-source-referenceCopy head branch name to clipboard