Only redirect to current API docs on current site

[lmktfy]

Rather than have every older documentation site serve a redirect to the current single-page API reference, just do it for https://kubernetes.io/

Here's a preview.

Examples:

• https://k8s.io/docs/reference/generated/kubernetes-api/latest/ redirects to https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.34/
• https://kubernetes.io/docs/reference/generated/kubernetes-api/latest/ redirects to https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.34/
• https://v1-33.docs.kubernetes.io/docs/reference/generated/kubernetes-api/latest/ is a 404 (and will stay as a 404)
• https://v1-34.docs.kubernetes.io/docs/reference/generated/kubernetes-api/latest/ will be a 404 once we start to serve that site

/area web-development

Follow-up tweak to PR #52591

@Caesarsage FYI

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[lmktfy]

/retitle Only redirect to current API docs on current site

[dipesh-rawat]

Looks like the build is failing with following error:

12:42:33 AM: Error: error building site: render: failed to render pages: render of "home" failed: "/opt/build/repo/layouts/index.redirects:9:24": execute of template failed: template: index.redirects:9:24: executing "index.redirects" at <.Site.params>: can't evaluate field params in type page.Site

Suggested a potential fix below to see if they help with the error.

Suggested change

	{{- if not ( index .Site.params "deprecated" ) -}}
	{{- if not .Site.Params.deprecated -}}

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[dipesh-rawat]

/lgtm

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 55509a072b22d6c119ca2b087a673064dd132f4f