[Flake] LoadBalancers should not have connectivity disruption during rolling update with externalTrafficPolicy=Local [Slow]

[aojea]

https://prow.k8s.io/view/gs/kubernetes-jenkins/pr-logs/pull/kubernetes-sigs_cloud-provider-kind/56/pull-cloud-provider-kind-conformance-parallel-ga-only/1782890037956841472

I0423 22:11:53.246754 74697 loadbalancer.go:1791] Number of running nodes: 2, number of updated ready pods: 0 in daemonset test-lb-rolling-update
I0423 22:11:54.420971 74697 loadbalancer.go:1725] Got error testing for reachability of http://172.18.0.5:80/echo?msg=hello: Get "http://172.18.0.5:80/echo?msg=hello": write tcp 172.18.0.1:47414->172.18.0.5:80: write: connection reset by peer
I0423 22:11:54.421265 74697 loadbalancer.go:1725] Got error testing for reachability of http://172.18.0.5:80/echo?msg=hello: Get "http://172.18.0.5:80/echo?msg=hello": read tcp 172.18.0.1:47422->172.18.0.5:80: read: connection reset by peer
I0423 22:11:54.421564 74697 loadbalancer.go:1725] Got error testing for reachability of http://172.18.0.5:80/echo?msg=hello: Get "http://172.18.0.5:80/echo?msg=hello": read tcp 172.18.0.1:47430->172.18.0.5:80: read: connection reset by peer
I0423 22:11:54.421898 74697 loadbalancer.go:1725] Got error testing for reachability of http://172.18.0.5:80/echo?msg=hello: Get "http://172.18.0.5:80/echo?msg=hello": read tcp 172.18.0.1:47432->172.18.0.5:80: read: connection reset

{ failed [FAILED] Encountered too many errors when doing HTTP requests to the load balancer address. Success rate is 90.51%, and the minimum allowed threshold is 95.00%.