[release-1.12] 🐛 StoragePolicy should ignore datastores in maintenance mode

[k8s-infra-cherrypick-robot]

This is an automated cherry-pick of #3498

/assign rikatz

[rikatz]

/cc @sbueringer @chrischdi
/lgtm

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 18c3e5a4862a5da24233999311a4496e3b53645b

[sbueringer]

/lgtm
/approve
/retest

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: sbueringer

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[sbueringer]

/retest

[sbueringer]

/retest

[sbueringer]

/retest

[sbueringer]

/retest

@chrischdi Known/expected issue at this time, I assume?

[sbueringer]

/retest

[sbueringer]

/override pull-cluster-api-provider-vsphere-e2e-supervisor-blocking-release-1-12

We have enough evidence from other jobs and other PRs that this change is fine

[k8s-ci-robot]

@sbueringer: Overrode contexts on behalf of sbueringer: pull-cluster-api-provider-vsphere-e2e-supervisor-blocking-release-1-12

In response to this:

/override pull-cluster-api-provider-vsphere-e2e-supervisor-blocking-release-1-12

We have enough evidence from other jobs and other PRs that this change is fine

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