fix: make kpromo version consistent

[richardcase]

What type of PR is this?

/kind bug

What this PR does / why we need it:

This change makes the versions of kpromo to consistently be v4.

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

Special notes for your reviewer:

Checklist:

• squashed commits

Release note:

Make kpromo versioned consistent

[k8s-ci-robot]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[Skarlso]

🤞

[richardcase]

@Ankitasw @Skarlso - checks are better on this PR :)

[Skarlso]

/lgtm

[Ankitasw]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Ankitasw

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