Fix conversion function name to remove warning

[CecileRobertMichon]

What type of PR is this?

What this PR does / why we need it: Cleanup from #1321

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:

Please confirm that if this PR changes any image versions, then that's the sole change this PR makes.

TODOs:

• squashed commits
• includes documentation
• adds unit tests

Release note:

NONE

[devigned]

Yay! CI is actually failing on verify.

[k8s-ci-robot]

@CecileRobertMichon: The following test failed, say /retest to rerun all failed tests:

Test name	Commit	Details	Rerun command
pull-cluster-api-provider-azure-apidiff	4b50c93	link	/test pull-cluster-api-provider-azure-apidiff

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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[CecileRobertMichon]

@devigned fixed it, generated files were actually out of date

[devigned]

/lgtm
/approve

[k8s-ci-robot]

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This pull-request has been approved by: devigned

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