Fix Index0utOfBoundsException in GeneratedKeyContextEngine caused by wrong generated flag in metadata #12122

Job	Run time
Import Global Environment / init-environment	3s
Build E2E Image	7m 58s
E2E - Agent with MySQL (proxy, tracing, jaeger)	6m 49s
E2E - Agent with MySQL (proxy, tracing, zipkin)	7m 13s
E2E - Agent with MySQL (proxy, metrics, prometheus)	7m 5s
E2E - Agent with MySQL (proxy, logging, file)	6m 41s
E2E - Agent with MySQL (jdbc, logging, file)	6m 23s
E2E - Agent with MySQL (jdbc, metrics, prometheus)	6m 23s
E2E - Agent with MySQL (jdbc, tracing, jaeger)	6m 30s
E2E - Agent with MySQL (jdbc, tracing, zipkin)	6m 25s
	1h 1m 30s

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