update valid-subscription-label for pf-status-relay-operator

[ashwindasr]

To fix failed CVP test

[INVALID] 'openshift4/pf-status-relay-operator-bundle' subscription type: OCP and up
 -> The annotation must contain: 'OpenShift Container Platform', 'OpenShift Platform Plus', but not contain: 'OpenShift Kubernetes Engine'

ref thread

[ashwindasr]

/cherry-pick openshift-4.19

[openshift-cherrypick-robot]

@ashwindasr: once the present PR merges, I will cherry-pick it on top of openshift-4.19 in a new PR and assign it to you.

In response to this:

/cherry-pick openshift-4.19

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[rayfordj]

/lgtm

[ashwindasr]

/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ashwindasr

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[openshift-cherrypick-robot]

@ashwindasr: new pull request created: #5987

In response to this:

/cherry-pick openshift-4.19

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-sigs/prow repository.