fix(traefik): update traefik dashboard (#28206)

The traefik dashboard doesn't come from the upstream so I copied the
official and updated one from
https://github.com/traefik/traefik/blob/master/contrib/grafana/traefik-kubernetes.json

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

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: 29.3.4
+version: 29.3.5