Fix: Update custom resource reference

[Guaris]

Description

Fixes #issue

Preview Links

Checklist

• Every page is page one.
• Tested how-to docs. If not, note why here.
• All pages contain metadata.
• Updated sources.yaml. For more info, review track docs changes
• Any new docs link to existing docs.
• All autogenerated instructions render correctly (API, decK, Konnect, Kong Manager).
• Style guide (capitalized gateway entities, placeholder URLs) implemented correctly.
• Every page has a description entry in frontmatter
• Add new pages to the product documentation index (if applicable)

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[lena-larionova]

LGTM but only as a temporary solution. Let's reach out to @mheap for guidance on how to generate this, since it doesn't seem to follow the format of the generated ref on the docs site.

[mheap]

This is generated by @Kong/team-k8s and crd-ref-docs