Add ability to specify the OpenAI model & version to deploy #1220

Job	Run time
native-build-test-event-statistics	4m 58s
build-test-event-statistics-17	1m 48s
native-build-test-rest-fights	11m 23s
build-test-rest-fights-17	6m 16s
native-build-test-rest-heroes	5m 38s
build-test-rest-heroes-17	1m 51s
native-build-test-rest-villains	5m 53s
build-test-rest-villains-17	1m 46s
native-build-test-grpc-locations	5m 9s
build-test-rest-narration-17	3m 7s
native-build-test-ui-super-heroes	4m 15s
build-test-grpc-locations-17	1m 27s
build-test-ui-super-heroes-17	1m 50s
	55m 21s

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