**What happened**:

When using kubectl ingress plugin and trying to list backends, backends for TCP and UDP Services are not listed.

**What you expected to happen**:

Backends for TCP and UDP Services are listed.

**NGINX Ingress controller version** (exec into the pod and run nginx-ingress-controller --version.):
```
-------------------------------------------------------------------------------
NGINX Ingress controller
  Release:       v1.10.0
  Build:         71f78d49f0a496c31d4c19f095469f3f23900f8a
  Repository:    https://github.com/kubernetes/ingress-nginx
  nginx version: nginx/1.25.3

-------------------------------------------------------------------------------
```

**Kubernetes version** (use `kubectl version`):
```
Client Version: version.Info{Major:"1", Minor:"27+", GitVersion:"v1.27.13-dispatcher", GitCommit:"2632c48320ca08c72387a6e291ec482e2aca4adf", GitTreeState:"clean", BuildDate:"2024-05-06T06:39:51Z", GoVersion:"go1.21.9", Compiler:"gc", Platform:"linux/amd64"}
Kustomize Version: v5.0.1
Server Version: version.Info{Major:"1", Minor:"27+", GitVersion:"v1.27.13-eks-3af4770", GitCommit:"4873544ec1ec7d3713084677caa6cf51f3b1ca6f", GitTreeState:"clean", BuildDate:"2024-04-30T03:31:44Z", GoVersion:"go1.21.9", Compiler:"gc", Platform:"linux/amd64"}
```

**Environment**:
```
$ kubectl krew list
PLUGIN         VERSION
ingress-nginx  v0.31.0
krew           v0.4.3
```

**How to reproduce this issue**:
1. deploy Nginx Ingress
2. configure TCP service as [documented](https://github.com/kubernetes/ingress-nginx/blob/main/docs/user-guide/exposing-tcp-udp-services.md)
3. check that server is added to `nginx.conf`
4. run `kubectl ingress-nginx backends`

**Anything else we need to know**:

Server entry exists in `nginx.conf`
```
# TCP services

        server {
                preread_by_lua_block {
                        ngx.var.proxy_upstream_name="tcp-default-selenium-5900";
                }

                listen                  5900 proxy_protocol;

                listen                  [::]:5900 proxy_protocol;

                proxy_timeout           600s;
                proxy_next_upstream     on;
                proxy_next_upstream_timeout 600s;
                proxy_next_upstream_tries   3;

                proxy_pass              upstream_balancer;

        }
```
Kubectl plugin backends does not show backends for TCP and UDP services
This is a GitHub Issue
repo:ingress-nginx
owner:kubernetes
Title : Kubectl plugin backends does not show backends for TCP and UDP services
Issue date:

--- start body ---
**What happened**:

When using kubectl ingress plugin and trying to list backends, backends for TCP and UDP Services are not listed.

**What you expected to happen**:

Backends for TCP and UDP Services are listed.

**NGINX Ingress controller version** (exec into the pod and run nginx-ingress-controller --version.):
```
-------------------------------------------------------------------------------
NGINX Ingress controller
  Release:       v1.10.0
  Build:         71f78d49f0a496c31d4c19f095469f3f23900f8a
  Repository:    https://github.com/kubernetes/ingress-nginx
  nginx version: nginx/1.25.3

-------------------------------------------------------------------------------
```

**Kubernetes version** (use `kubectl version`):
```
Client Version: version.Info{Major:"1", Minor:"27+", GitVersion:"v1.27.13-dispatcher", GitCommit:"2632c48320ca08c72387a6e291ec482e2aca4adf", GitTreeState:"clean", BuildDate:"2024-05-06T06:39:51Z", GoVersion:"go1.21.9", Compiler:"gc", Platform:"linux/amd64"}
Kustomize Version: v5.0.1
Server Version: version.Info{Major:"1", Minor:"27+", GitVersion:"v1.27.13-eks-3af4770", GitCommit:"4873544ec1ec7d3713084677caa6cf51f3b1ca6f", GitTreeState:"clean", BuildDate:"2024-04-30T03:31:44Z", GoVersion:"go1.21.9", Compiler:"gc", Platform:"linux/amd64"}
```

**Environment**:
```
$ kubectl krew list
PLUGIN         VERSION
ingress-nginx  v0.31.0
krew           v0.4.3
```

**How to reproduce this issue**:
1. deploy Nginx Ingress
2. configure TCP service as [documented](https://github.com/kubernetes/ingress-nginx/blob/main/docs/user-guide/exposing-tcp-udp-services.md)
3. check that server is added to `nginx.conf`
4. run `kubectl ingress-nginx backends`

**Anything else we need to know**:

Server entry exists in `nginx.conf`
```
# TCP services

        server {
                preread_by_lua_block {
                        ngx.var.proxy_upstream_name="tcp-default-selenium-5900";
                }

                listen                  5900 proxy_protocol;

                listen                  [::]:5900 proxy_protocol;

                proxy_timeout           600s;
                proxy_next_upstream     on;
                proxy_next_upstream_timeout 600s;
                proxy_next_upstream_tries   3;

                proxy_pass              upstream_balancer;

        }
```
--- end body ---
