FLINK-36332 Add option to select the Fabric8 httpclient implemention #4026

Job	Run time
test_ci (21)	28m 35s
e2e_ci (v1_20, default, native, 21, okhttp, test_application_kubernetes_ha.sh)	5s
e2e_ci (v1_20, default, native, 21, okhttp, test_application_operations.sh)	6s
e2e_ci (v1_20, default, native, 21, okhttp, test_sessionjob_kubernetes_ha.sh)	5s
e2e_ci (v1_20, default, native, 21, okhttp, test_sessionjob_operations.sh)	5s
e2e_ci (v1_20, default, native, 21, okhttp, test_flink_operator_ha.sh)	5s
e2e_ci (v1_20, default, native, 21, okhttp, test_snapshot.sh)	5s
e2e_ci (v1_20, flink, native, 21, okhttp, test_application_kubernetes_ha.sh)	5s
e2e_ci (v1_20, flink, native, 21, okhttp, test_application_operations.sh)	5s
e2e_ci (v1_20, flink, native, 21, okhttp, test_dynamic_config.sh)	4s
e2e_ci (v1_20, flink, native, 21, okhttp, test_sessionjob_kubernetes_ha.sh)	6s
e2e_ci (v1_20, flink, native, 21, okhttp, test_sessionjob_operations.sh)	3s
e2e_ci (v1_20, flink, native, 21, okhttp, test_multi_sessionjob.sh)	4s
e2e_ci (v1_20, flink, native, 21, okhttp, test_autoscaler.sh)	5s
e2e_ci (v1_20, flink, native, 21, okhttp, test_flink_operator_ha.sh)	5s
e2e_ci (v1_20, flink, native, 21, okhttp, test_snapshot.sh)	8s
e2e_ci (v1_19, flink:1.19)	3s
e2e_ci (v1_18, flink:1.18)	4s
e2e_ci (v1_17, flink:1.17)	7s
e2e_ci (v1_16, flink:1.16)	6s
e2e_ci (v1_20, native, default, test_application_operations.sh, okhttp, vertx, jetty, jdk)	3s
	30m 14s

Provide feedback