Change kubevirt-e2e-k8s-1.22-ipv6-sig-network to be mandatory

[AlonaKaplan]

Single stack IPv6 support was added to kubevirt (kubevirt/kubevirt#7158).
This PR changes the single stack IPv6 lane to be mandatory.

[enp0s3]

/approve

[kubevirt-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: enp0s3

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[AlonaKaplan]

/retest

[kubevirt-bot]

@AlonaKaplan: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-project-infra-check-testgrid-config	2bf4ce1	link	false	/test pull-project-infra-check-testgrid-config

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[kubevirt-bot]

@AlonaKaplan: Updated the job-config configmap in namespace kubevirt-prow at cluster default using the following files:

• key kubevirt-presubmits.yaml using file github/ci/prow-deploy/files/jobs/kubevirt/kubevirt/kubevirt-presubmits.yaml

In response to this:

Single stack IPv6 support was added to kubevirt (kubevirt/kubevirt#7158).
This PR changes the single stack IPv6 lane to be mandatory.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.