cilium-cli/clustermesh: Fix bad type for service type

Helm expects /clustermesh/apiserver/service/type to be a string
according to install/kubernetes/cilium/values.schema.json:1404, but
it was passed as a v1.ServiceType causing the following error:

```
cilium clustermesh enable --context cluster1
🔮 Auto-exposing service within Azure VPC (service.beta.kubernetes.io/azure-load-balancer-internal)

Error: Unable to enable ClusterMesh: values don't meet the specifications of the schema(s) in the following chart(s):
cilium:
- at '/clustermesh/apiserver/service/type': invalid jsonType v1.ServiceType
```

This is fixed by casting it to a string.

Fixes: 112e08d ("clustermesh: fix hardcode at service type")

Signed-off-by: Mauricio Vásquez <mauriciov@microsoft.com>

Author: mauriciovasquezbernal

cilium-cli/clustermesh/clustermesh.go

@@ -1005,7 +1005,7 @@ func generateEnableHelmValues(params Parameters, flavor k8s.Flavor) (map[string]
 			log("🔮 Auto-exposing service within GCP VPC (networking.gke.io/load-balancer-type=Internal)")
 			helmVals["clustermesh"].(map[string]any)["apiserver"] = map[string]any{
 				"service": map[string]any{
-					"type": corev1.ServiceTypeLoadBalancer,
+					"type": string(corev1.ServiceTypeLoadBalancer),
 					"annotations": map[string]any{
 						"networking.gke.io/load-balancer-type": "Internal",
 						// Allows cross-region access
@@ -1017,7 +1017,7 @@ func generateEnableHelmValues(params Parameters, flavor k8s.Flavor) (map[string]
 			log("🔮 Auto-exposing service within Azure VPC (service.beta.kubernetes.io/azure-load-balancer-internal)")
 			helmVals["clustermesh"].(map[string]any)["apiserver"] = map[string]any{
 				"service": map[string]any{
-					"type": corev1.ServiceTypeLoadBalancer,
+					"type": string(corev1.ServiceTypeLoadBalancer),
 					"annotations": map[string]any{
 						"service.beta.kubernetes.io/azure-load-balancer-internal": "true",
 					},
@@ -1027,7 +1027,7 @@ func generateEnableHelmValues(params Parameters, flavor k8s.Flavor) (map[string]
 			log("🔮 Auto-exposing service within AWS VPC (service.beta.kubernetes.io/aws-load-balancer-scheme: internal")
 			helmVals["clustermesh"].(map[string]any)["apiserver"] = map[string]any{
 				"service": map[string]any{
-					"type": corev1.ServiceTypeLoadBalancer,
+					"type": string(corev1.ServiceTypeLoadBalancer),
 					"annotations": map[string]any{
 						"service.beta.kubernetes.io/aws-load-balancer-scheme": "internal",
 					},