Add e2e tests for BGPPolicy #32864

Job	Run time
Check whether tests need to be run based on diff	15s
Build Antrea image to be used for Kind e2e tests	3m 40s
Build Flow Aggregator image to be used for Kind e2e tests	2m 19s
E2e tests on a Kind cluster on Linux	42m 3s
E2e tests on a Kind cluster on Linux with all features enabled	53m 33s
E2e tests on a Kind cluster on Linux for Flow Visibility	26m 5s
E2e tests on a Kind cluster on Linux with non default values (proxyAll=true, LoadBalancerMode=DSR...	44m 4s
API compatible with client version N-1	8m 14s
E2e tests on a Kind cluster on Linux (hybrid)	35m 57s
E2e tests on a Kind cluster on Linux (noEncap)	36m 27s
NetworkPolicy conformance tests on a Kind cluster on Linux	7m 49s
Antrea-native (VLAN) secondary network tests on a Kind cluster on Linux	3m 17s
Upgrade from Antrea version N-1	8m 49s
Upgrade from Antrea version N-2	9m 7s
Test installation using 'antctl check' command	3m 34s
API compatible with client version N-2	8m 25s
Validate metrics in Prometheus document match running deployment's	1m 50s
Delete uploaded images	0s
	4h 55m 28s

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