e2e: stabilize PAO update test

[shajmakh]

Manual cherry-pick of NTO pr: https://github.com/openshift/cluster-node-tuning-operator/pull/394.

[openshift-ci[bot]]

@shajmakh: No Bugzilla bug is referenced in the title of this pull request. To reference a bug, add 'Bug XXX:' to the title of this pull request and request another bug refresh with /bugzilla refresh.

In response to [this](https://github.com/openshift-kni/performance-addon-operators/pull/949): >e2e: stabilize PAO update test Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes/test-infra](https://github.com/kubernetes/test-infra/issues/new?title=Prow%20issue:) repository.

[shajmakh]

needed to fix u/s ci for https://github.com/openshift-kni/performance-addon-operators/pull/948

[coveralls]

Pull Request Test Coverage Report for Build 2628

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 60.532%

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Totals
Change from base Build 2627:	0.0%
Covered Lines:	1592
Relevant Lines:	2630

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💛 - Coveralls

[shajmakh]

/hold wait for #948 to be merged

[shajmakh]

/hold cancel as #948 is merged

[shajmakh]

u/s ci passed after the rebase.

[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: fromanirh, shajmakh

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Needs approval from an approver in each of these files: - ~~[OWNERS](https://github.com/openshift-kni/performance-addon-operators/blob/release-4.10/OWNERS)~~ [fromanirh] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment