testing: Remove use of deprecated ComponentStatusList API

[tstromberg]

Fixes issues with the deprecated usage of ComponentStatusList seen in #9050

For more context, see https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.19.md

Sample output:

=== CONT  TestFunctional/parallel/ComponentHealth
    functional_test.go:322: (dbg) Run:  kubectl --context minikube get po -l tier=control-plane -n kube-system -o=json
    functional_test.go:334: etcd phase: Running
    functional_test.go:334: control-plane phase: Running
    functional_test.go:334: kube-apiserver phase: Running
    functional_test.go:334: control-plane phase: Running
    functional_test.go:334: kube-controller-manager phase: Running
    functional_test.go:334: control-plane phase: Running
    functional_test.go:334: kube-scheduler phase: Running
    functional_test.go:334: control-plane phase: Running
--- PASS: TestFunctional (0.12s)

[tstromberg]

/ok-to-test

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: tstromberg

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[minikube-pr-bot]

kvm2 Driver
error collecting results for kvm2 driver: timing run 0 with Minikube (PR 9058): timing cmd: [/home/performance-monitor/.minikube/minikube-binaries/9058/minikube start --driver=kvm2]: starting cmd: fork/exec /home/performance-monitor/.minikube/minikube-binaries/9058/minikube: exec format error
docker Driver
error collecting results for docker driver: timing run 0 with Minikube (PR 9058): timing cmd: [/home/performance-monitor/.minikube/minikube-binaries/9058/minikube start --driver=docker]: starting cmd: fork/exec /home/performance-monitor/.minikube/minikube-binaries/9058/minikube: exec format error

[tstromberg]

/ok-to-test