chore(deps): update helm release ingress-nginx to v4.8.4

Author: renovate[bot]

cluster/apps/networking/ingress-nginx/helm-release.yaml

@@ -9,7 +9,7 @@ spec:
   chart:
     spec:
       chart: ingress-nginx
-      version: 4.2.0
+      version: 4.8.4
       sourceRef:
         kind: HelmRepository
         name: ingress-nginx