Fix usage of Java 17 #122

Job	Run time
batch-dev-guides-batchsamples	1m 55s
kafka-samples	2m 33s
function-samples-uppercase-processor	1m 23s
function-samples	5m 12s
multi-io-ticktock	1m 40s
restaurant-stream-apps-kitchen	2m 49s
multi-io-http-purchase-orders	1m 3s
restaurant-stream-apps-customer	2m 45s
restaurant-stream-apps-waitron	1m 26s
scenario-task	3m 30s
stream-dev-guides-composed-http-transformer-kafka	1m 44s
scenario-task-3	2m 50s
stream-dev-guides-composed-http-transformer-kotlin-kafka	1m 31s
stream-dev-guides-composed-http-transformer-kotlin-rabbitmq	1m 30s
stream-dev-guides-composed-http-transformer-rabbitmq	1m 43s
stream-dev-guides-standalone-stream-kafka	1m 41s
stream-dev-guides-standalone-stream-rabbitmq	2m 4s
task-demo-metrics-prometheus	2m 44s
timestamp-batch-20x	1m 59s
timestamp-batch-30x	1m 58s
timestamp-task-20x	1m 23s
timestamp-task-30x	3m 1s
user-clicks-per-region-12x	4m 52s
completed	1s
	53m 17s

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