Promote ReferenceGrant to Beta

[nathancoleman]

What type of PR is this?

/kind feature /kind api-change

What this PR does / why we need it: Graduates the ReferenceGrant resource to v1beta1 and the stable release channel

Which issue(s) this PR fixes:

Fixes #1448

Does this PR introduce a user-facing change?:

Promotes ReferenceGrant to the v1beta1 API and the stable release channel

[k8s-ci-robot]

Hi @nathancoleman. Thanks for your PR.

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[robscott]

Thanks for working on this @nathancoleman! I'm going to hold off on reviewing this since it's still in draft state, but leave another comment here when it's ready for review.

/ok-to-test

[nathancoleman]

@robscott can you take a look when you get a moment?

[nathancoleman]

Others feel free to review. It seems that re-requesting a review from Rob removes all other reviewers

[nathancoleman]

@robscott to you for review when you get a moment

[robscott]

Thanks @nathancoleman! This change LGTM, but I want to get another maintainer to sign off before merging since this represents graduating a resource to beta.

/approve /assign @shaneutt @youngnick

[nathancoleman]

@shaneutt what change are you looking for there? I don't see anything in the GEP template or other GEPs that looks related

[shaneutt]

You'll wanna update the GEP status here to standard:

https://github.com/kubernetes-sigs/gateway-api/blob/2f7ab6846818c1632f163a1f97b28199ec36fa8f/site-src/geps/gep-709.md?plain=1#L4

And move it under "Standard" here:

https://github.com/kubernetes-sigs/gateway-api/blob/2f7ab6846818c1632f163a1f97b28199ec36fa8f/mkdocs.yml#L86

Also I would recommend taking one quick pass over the GEP just to make sure everything in it is accurate to the current API state, and if not update it to be in sync.

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: nathancoleman, robscott, shaneutt

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