[releases/v2.16-cim] MGMT-22665: Handle empty labels in infra env host table

[openshift-cherrypick-robot]

https://issues.redhat.com/browse/MGMT-22665

This is an automated cherry-pick of #3314

/assign jgyselov

[openshift-ci-robot]

@openshift-cherrypick-robot: Ignoring requests to cherry-pick non-bug issues: MGMT-22438

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In response to this:

This is an automated cherry-pick of #3314

/assign jgyselov

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