[release-v0.18] Alert VMStorageClassWarning only for Windows VMs

[machadovilaca]

What this PR does / why we need it:

This is a manual cherry-pick of #984 and #1122

Which issue(s) this PR fixes:

Fixes #

jira-ticket: https://issues.redhat.com/browse/CNV-50785

Special notes for your reviewer:

Release note:

Alert VMStorageClassWarning only for Windows VMs

[kubevirt-bot]

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[sonarcloud]

Quality Gate failed

Failed conditions
5 Security Hotspots
C Security Rating on New Code (required ≥ A)

See analysis details on SonarCloud

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[machadovilaca]

/retest

[openshift-ci]

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

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e-single-node-functests	3804429	link	true	/test e2e-single-node-functests
ci/prow/e2e-functests	3804429	link	true	/test e2e-functests

Full PR test history. Your PR dashboard.

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[akrejcir]

Are you going to open a PR for later versions too?

[machadovilaca]

Are you going to open a PR for later versions too?

yes