[release-4.18] OCPBUGS-65757: pkg/cli/admin/upgrade: Tighten force warnings

[openshift-cherrypick-robot]

This is an automated cherry-pick of #2146

/assign openshift-cherrypick-robot

[openshift-ci-robot]

@openshift-cherrypick-robot: Failed to create a cherry-pick bug in Jira: An error was encountered searching for bug OCPBUGS-65757 on the Jira server at https://issues.redhat.com/. No known errors were detected, please see the full error message for details.

Full error message.

invalid character '<' looking for beginning of value: file already closed

Please contact an administrator to resolve this issue, then request a bug refresh with /jira refresh.

Details

In response to this:

This is an automated cherry-pick of #2146

/assign openshift-cherrypick-robot

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[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: openshift-cherrypick-robot
Once this PR has been reviewed and has the lgtm label, please assign wking for approval. For more information see the Code Review Process.

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Details

Needs approval from an approver in each of these files:

• pkg/cli/admin/upgrade/OWNERS

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[ardaguclu]

/label backport-risk-assessed

[openshift-ci]

@openshift-cherrypick-robot: 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/security	42c8136	link	false	/test security

Full PR test history. Your PR dashboard.

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