fix: selector pod to request EMQX API #3227

Job	Run time
unit-test	3m 3s
unit-test	3m 3s
lint	1m 20s
lint	1m 20s
e2e-test (e2e/v2beta1/e2e_test.go)	9m 55s
e2e-test (e2e/v2beta1/e2e_test.go)	5m 57s
e2e-test (e2e/v2beta1/e2e_rebalance_test.go)	3m 55s
e2e-test (e2e/v2beta1/e2e_rebalance_test.go)	3m 55s
e2e-test (e2e/v1beta4/e2e_upgrade_test.go)	3m 50s
e2e-test (e2e/v1beta4/e2e_upgrade_test.go)	3m 50s
e2e-test (e2e/v1beta4/e2e_blure_green_upgrade_test.go)	4m 56s
e2e-test (e2e/v1beta4/e2e_blure_green_upgrade_test.go)	4m 56s
e2e-test (e2e/v1beta4/e2e_base_test.go)	4m 28s
e2e-test (e2e/v1beta4/e2e_base_test.go)	4m 28s
codecov	0s
codecov	9s
	59m 5s

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