Update klog dependency to v2

[stmcginnis]

What this PR does / why we need it:

The klog v1 dependency used is quite old now, and the k/k repo has
switched to more recent v2 versions for quite some time now.

This updates klog usage to use the v2 package version.

Special notes for your reviewer:

This is part of an overall effort along with updating the k-sigs/cluster-api repo here:

kubernetes-sigs/cluster-api#4284

Release note:

NONE

[k8s-ci-robot]

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[k8s-ci-robot]

Hi @stmcginnis. Thanks for your PR.

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[yastij]

/ok-to-test

[yastij]

/test pull-cluster-api-provider-vsphere-e2e

[yastij]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: yastij

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[gab-satchi]

/lgtm