Support Gateway infrastructure

[hongbo-miao]

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 did you expect to see?

It would be great to support Gateway infrastructure, thanks!
https://kubernetes.io/blog/2023/11/28/gateway-api-ga/#gateway-infrastructure-labels

It will help us pass service.beta.kubernetes.io/aws-load-balancer-type: nlb to use AWS Network Load Balancer ☺️

apiVersion: gateway.networking.k8s.io/v1
kind: Gateway
metadata:
  name: traefik-gateway
  namespace: traefik
  annotations:
    cert-manager.io/cluster-issuer: staging-lets-encrypt-issuer
spec:
  gatewayClassName: cilium
  infrastructure:
    annotations:
      service.beta.kubernetes.io/aws-load-balancer-type: nlb
  # ...

[mloiseleur]

Yes, it would be great. Thanks for this issue.