Support GatewayAPI with traefik built-in acme certificate resolver

[everflux]

Welcome!

• Yes, I've searched similar issues on GitHub and didn't find any.
• Yes, I've searched similar issues on the Traefik community forum and didn't find any.

What do you want to achieve with this Chart ?

I would like to use traefik with a k3s cluster and not install cert-manager but use the built-in certificateresolver with traefik like with Ingress or IngressRoute API on the Gateway API.
Currently the Gateway API requires references to secrets with pre-existing TLS material.

A solution would be to add a certresolver property to the TLSOptions, which can be referenced from a Gateway instance or use an annotation like with the Ingress API

traefik.io/tls.certresolver: letsencrypt

This should work for TCPRoute, HTTPRoute and listeners of type HTTPS and TLS and all resolvers (TLS/HTTP/DNS challenge)

A similar issue was traefik/traefik#11125