use own function to define CSI image version

[zetaab]

this PR fixes 2 bugs:

1. there is typo in CCM tag, it should be v1.23.1 not 1.23.1
2. currently kOps assumes that CSI uses same version than CCM uses in OpenStack. However, that is not true currently.

[zetaab]

/kind bug

[zetaab]

this needs cherry-pick to 1.23

[zetaab]

/test pull-kops-verify-gofmt
/test pull-kops-verify-govet

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

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[zetaab]

/test pull-kops-verify-govet

[zetaab]

/test pull-kops-verify-gofmt

[k8s-triage-robot]

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/retest

[k8s-triage-robot]

The Kubernetes project has merge-blocking tests that are currently too flaky to consistently pass.

This bot retests PRs for certain kubernetes repos according to the following rules:

• The PR does have any do-not-merge/* labels
• The PR does not have the needs-ok-to-test label
• The PR is mergeable (does not have a needs-rebase label)
• The PR is approved (has cncf-cla: yes, lgtm, approved labels)
• The PR is failing tests required for merge

You can:

• Review the full test history for this PR
• Prevent this bot from retesting with /lgtm cancel or /hold
• Help make our tests less flaky by following our Flaky Tests Guide

/retest

[olemarkus]

/hold

[zetaab]

/hold cancel