Add nodelatencystats rest apis implementation. #32852

Job	Run time
Check whether tests need to be run based on diff	17s
Build Antrea image to be used for Kind e2e tests	3m 32s
Build Flow Aggregator image to be used for Kind e2e tests	2m 25s
E2e tests on a Kind cluster on Linux with non default values (proxyAll=true, LoadBalancerMode=DSR...	44m 51s
E2e tests on a Kind cluster on Linux (noEncap)	36m 27s
E2e tests on a Kind cluster on Linux	42m 12s
E2e tests on a Kind cluster on Linux with all features enabled	53m 53s
E2e tests on a Kind cluster on Linux for Flow Visibility	25m 59s
API compatible with client version N-1	9m 20s
E2e tests on a Kind cluster on Linux (hybrid)	35m 57s
NetworkPolicy conformance tests on a Kind cluster on Linux	7m 59s
Antrea-native (VLAN) secondary network tests on a Kind cluster on Linux	3m 3s
Upgrade from Antrea version N-1	8m 32s
Upgrade from Antrea version N-2	9m 2s
Test installation using 'antctl check' command	3m 30s
API compatible with client version N-2	8m 32s
Validate metrics in Prometheus document match running deployment's	1m 51s
Delete uploaded images	5s
	4h 57m 27s

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