[FlowAggregator] Close connection to IPFIX collector on Stop #33125

Job	Run time
Check whether tests need to be run based on diff	18s
Build Antrea image to be used for Kind e2e tests	9m 41s
Build Flow Aggregator image to be used for Kind e2e tests	2m 47s
E2e tests on a Kind cluster on Linux (noEncap)	36m 3s
E2e tests on a Kind cluster on Linux with all features enabled	54m 19s
API compatible with client version N-2	8m 34s
API compatible with client version N-1	8m 43s
E2e tests on a Kind cluster on Linux with non default values (proxyAll=true, LoadBalancerMode=DSR...	44m 45s
E2e tests on a Kind cluster on Linux	42m 50s
E2e tests on a Kind cluster on Linux for Flow Visibility	26m 22s
E2e tests on a Kind cluster on Linux (hybrid)	37m 18s
NetworkPolicy conformance tests on a Kind cluster on Linux	8m 15s
Antrea-native (VLAN) secondary network tests on a Kind cluster on Linux	3m 37s
Upgrade from Antrea version N-1	9m 12s
Upgrade from Antrea version N-2	9m 2s
Test installation using 'antctl check' command	4m 1s
Validate metrics in Prometheus document match running deployment's	2m 1s
Delete uploaded images	6s
	5h 7m 54s

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