Fix e2e test testTraceflowValidation for IPv6-only cluster (#5415) #27581

Job	Run time
Check whether tests need to be run based on diff	27s
Build Antrea image to be used for Kind e2e tests	22m 13s
Build Flow Aggregator image to be used for Kind e2e tests	6m 23s
E2e tests on a Kind cluster on Linux with all features enabled	1h 3m 39s
E2e tests on a Kind cluster on Linux with non default values (proxyAll=true, LoadBalancerMode=DSR...	1h 2m 53s
E2e tests on a Kind cluster on Linux (noEncap)	55m 0s
E2e tests on a Kind cluster on Linux	51m 39s
E2e tests on a Kind cluster on Linux for Flow Visibility	22m 3s
E2e tests on a Kind cluster on Linux (hybrid)	50m 8s
NetworkPolicy conformance tests on a Kind cluster on Linux	9m 54s
Upgrade from Antrea version N-1	11m 42s
API compatible with client version N-1	11m 53s
API compatible with client version N-2	11m 48s
Upgrade from Antrea version N-2	13m 54s
Validate metrics in Prometheus document match running deployment's	2m 39s
Delete uploaded images	0s
	6h 36m 15s

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