[FLINK-38409] Showcase in Helm chart values.yaml that config.yaml can be used #4737

Job	Run time
maven build (21)	19m 9s
maven build (17)	19m 53s
Helm Lint Test	11s
Smoke test (okhttp, 21) / test_application_operations.sh	3m 3s
Smoke test (jdk, 21) / test_application_operations.sh	3m 3s
Smoke test (jdk, 17) / test_application_operations.sh	3m 4s
Smoke test (vertx, 17) / test_application_operations.sh	3m 3s
Smoke test (jetty, 21) / test_application_operations.sh	3m 5s
Smoke test (vertx, 21) / test_application_operations.sh	2m 47s
Smoke test (jetty, 17) / test_application_operations.sh	3m 5s
Smoke test (okhttp, 17) / test_application_operations.sh	3m 3s
Alternative namespace tests	0s
Java runtimes smoke test	0s
e2e_ci	0s
	1h 3m 26s

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