Bump max openshift version 4.18

[periklis]

Description

Follow-up on #1015 to support installs for related products up to OCP cluster upgrades to 4.18

/cc @xperimental @JoaoBraveCoding

[periklis]

/override ci/prow/e2e-upgrade

[openshift-ci]

@periklis: Overrode contexts on behalf of periklis: ci/prow/e2e-upgrade

In response to this:

/override ci/prow/e2e-upgrade

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.

[periklis]

/override ci/prow/e2e-upgrade

[openshift-ci]

@periklis: Overrode contexts on behalf of periklis: ci/prow/e2e-upgrade

In response to this:

/override ci/prow/e2e-upgrade

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.

[JoaoBraveCoding]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: JoaoBraveCoding, periklis

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[openshift-ci-robot]

/retest-required

Remaining retests: 0 against base HEAD 38656a0 and 2 for PR HEAD d42ecfb in total

[openshift-ci]

@periklis: The following test 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-upgrade	d42ecfb	link	false	/test e2e-upgrade

Full PR test history. Your PR dashboard.

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. I understand the commands that are listed here.