Update provisioner.sh

To update the version of Prometheus CRDS. The current hardcoded version v0.11 is old and sometimes through 404. 

```+ kubectl apply -f https://raw.githubusercontent.com/prometheus-operator/kube-prometheus/release-0.11/manifests/setup/0servicemonitorCustomResourceDefinition.yaml
module.cilium.null_resource.install_cilium_with_clustermesh (local-exec): Unable to connect to the server: read tcp 192.168.29.234:52746->185.199.110.133:443: read: connection reset by peer
```

scripts/provisioner.sh

@@ -68,7 +68,7 @@ export IPSEC_ENABLED
 # Manually create the 'ServiceMonitor' CRD from 'kube-prometheus' so we can enable the creation of 'ServiceMonitor' resources in the Cilium Helm chart.
 if [[ "${INSTALL_KUBE_PROMETHEUS_CRDS}" == "true" ]];
 then
-  kubectl apply -f "https://raw.githubusercontent.com/prometheus-operator/kube-prometheus/release-0.11/manifests/setup/0servicemonitorCustomResourceDefinition.yaml"
+  kubectl apply -f "https://raw.githubusercontent.com/prometheus-operator/kube-prometheus/release-0.13/manifests/setup/0servicemonitorCustomResourceDefinition.yaml"
   until kubectl get servicemonitors --all-namespaces;
   do
       echo "Waiting for the 'servicemonitors' CRD...";
@@ -114,4 +114,4 @@ fi
 if [[ "${POST_CILIUM_INSTALL_SCRIPT}" != "" ]];
 then
   base64 --decode <<< "${POST_CILIUM_INSTALL_SCRIPT}" | bash
-fi
+fi