additional properties 'kubernetesIngressNGINX' not allowed

### Welcome! - [x] Yes, I've searched similar issues on [GitHub](https://github.com/traefik/traefik-helm-chart/issues) and didn't find any. - [x] Yes, I've searched similar issues on the [Traefik community forum](https://community.traefik.io) and didn't find any. ### What version of the Traefik's Helm Chart are you using? 39.0.5 ### What version of Traefik are you using? v3.6.10 ### What did you expect to happen ? I am trying to enable supported nginx ingress annotation according to the documentation https://doc.traefik.io/traefik/master/reference/install-configuration/providers/kubernetes/kubernetes-ingress-nginx/#configuration-example but when i add the values to the vlaue.yaml file based on the example the helm release fails with the argument name and main error ```- at '/providers': additional properties 'kubernetesIngressNGINX' not allowed``` ### What did you notice instead ? The helm release just fails and the pods are restarting logs from pods shows `the pods are throwing error {"level":"error","error":"command traefik error: failed to decode configuration from flags: field not found, node: proxybuffersize","time":"2026-03-09T13:06:40Z","message":"Command error"}` ### What are your values ? `providers: kubernetesIngressNGINX: # IngressClass configuration ingressClass: "nginx" controllerClass: "k8s.io/ingress-nginx" watchIngressWithoutClass: false ingressClassByName: false proxyConnectTimeout: 60 proxyRequestBuffering: false clientBodyBufferSize: "16384" # 16k proxyBuffering: false proxyBodySize: "1048576" # 1m proxyBufferSize: "8192" # 8k proxyBuffersNumber: 4 ` ### Additional Information ```shell ```