fix: group description in LocalObjectReference

[EyalPazz]

/kind documentation

Which issue(s) this PR fixes:
Fixes #3322

Does this PR introduce a user-facing change?:

NONE

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[k8s-ci-robot]

Hi @EyalPazz. Thanks for your PR.

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[mlavacca]

Thanks for this PR, @EyalPazz!

/ok-to-test

[mlavacca]

@EyalPazz to make CI green you need to run make update-codegen

[EyalPazz]

@mlavacca

Will do later today, thanks!

[EyalPazz]

/retest

[mlavacca]

Thanks for this PR, @EyalPazz!

/approve
/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: EyalPazz, mlavacca

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