Add -race flag to CA UT script

[kukichek]

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

Adds race check to CA UT script runner

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?

NONE

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: kukichek
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[k8s-ci-robot]

Hi @kukichek. Thanks for your PR.

I'm waiting for a kubernetes member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[kukichek]

/release-note-none

[adrianmoisey]

/area cluster-autoscaler

[mboersma]

/ok-to-test

[jackfrancis]

@kukichek could you add a superficial change to the CA go source code (e.g., a comment) to trigger a test run?