Adjust VirtualCluster owners

[Fei-Guo]

No description provided.

[k8s-ci-robot]

@Fei-Guo: The following test failed, say /retest to rerun all failed tests:

Test name	Commit	Details	Rerun command
pull-cluster-api-provider-nested-test	fcc3ed0	link	/test pull-cluster-api-provider-nested-test

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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[christopherhein]

/lgtm
/approve

👍

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: christopherhein, Fei-Guo

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Needs approval from an approver in each of these files:

• virtualcluster/OWNERS [Fei-Guo,christopherhein]

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