fix(traefik): add missing rbacs (#24262)

**Description**
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⚒️ Fixes  # <!--(issue)-->

```
W0724 23:13:34.467702       1 reflector.go:547] k8s.io/client-go@v0.30.0/tools/cache/reflector.go:232: failed to list *v1.EndpointSlice: endpointslices.discovery.k8s.io is forbidden: User "system:serviceaccount:traefik:traefik" cannot list resource "endpointslices" in API group "discovery.k8s.io" at the cluster scope
E0724 23:13:34.467728       1 reflector.go:150] k8s.io/client-go@v0.30.0/tools/cache/reflector.go:232: Failed to watch *v1.EndpointSlice: failed to list *v1.EndpointSlice: endpointslices.discovery.k8s.io is forbidden: User "system:serviceaccount:traefik:traefik" cannot list resource "endpointslices" in API group "discovery.k8s.io" at the cluster scope
W0724 23:13:47.952823       1 reflector.go:547] k8s.io/client-go@v0.30.0/tools/cache/reflector.go:232: failed to list *v1.Node: nodes is forbidden: User "system:serviceaccount:traefik:traefik" cannot list resource "nodes" in API group "" at the cluster scope
E0724 23:13:47.952853       1 reflector.go:150] k8s.io/client-go@v0.30.0/tools/cache/reflector.go:232: Failed to watch *v1.Node: failed to list *v1.Node: nodes is forbidden: User "system:serviceaccount:traefik:traefik" cannot list resource "nodes" in API group "" at the cluster scope
```

**⚙️ Type of change**

- [ ] ⚙️ Feature/App addition
- [x] 🪛 Bugfix
- [ ] ⚠️ Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] 🔃 Refactor of current code

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**✔️ Checklist:**

- [x] ⚖️ My code follows the style guidelines of this project
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- [ ] 📄 I have made corresponding changes to the documentation
- [ ] ⚠️ My changes generate no new warnings
- [ ] 🧪 I have added tests to this description that prove my fix is
effective or that my feature works
- [x] ⬆️ I increased versions for any altered app according to semantic
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- [x] I made sure the title starts with `feat(chart-name):`,
`fix(chart-name):` or `chore(chart-name):`

**➕ App addition**

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charts/premium/traefik/Chart.yaml

@@ -35,4 +35,4 @@ sources:
   - https://github.com/truecharts/containers/tree/master/apps/traefik
   - https://traefik.io/
 type: application
-version: 29.2.0
+version: 29.2.1

charts/premium/traefik/values.yaml

@@ -316,6 +316,22 @@ rbac:
           - get
           - list
           - watch
+      - apiGroups:
+          - ""
+        resources:
+          - nodes
+        verbs:
+          - get
+          - list
+          - watch
+      - apiGroups:
+          - discovery.k8s.io
+        resources:
+          - endpointslices
+        verbs:
+          - get
+          - list
+          - watch          
 # -- The service account the pods will use to interact with the Kubernetes API
 serviceAccount:
   main: