[CCE] - Add timezone parameter into metadata of the cluster creation

[oeotvos]

Description of the enhancement

Please add new parameter timezone into
https://registry.terraform.io/providers/opentelekomcloud/opentelekomcloud/latest/docs/resources/cce_cluster_v3

API reference:
https://docs.otc.t-systems.com/cloud-container-engine/api-ref/apis/cluster_management/creating_a_cluster.html

UMN:
https://docs.otc.t-systems.com/cloud-container-engine/umn/clusters/creating_a_cluster/creating_a_cce_standard_turbo_cluster.html#cce-10-0028

API Example:
curl -w "\n%{http_code}\n" -sS -X POST -H 'Content-Type:application/json' -H "$AUTH_TOKEN" -d ' { "kind": "cluster", "apiVersion": "v3", "metadata": { "name": "cce-api-asia-timezone", "timezone" : "Asia/Shanghai", "annotations": { "cluster.install.addons.external/install": "[{\"addonTemplateName\":\"icagent\"}]" } }, "spec": { "type": "VirtualMachine", "flavor": "cce.s1.small", "description": "API test cluster.", "HostNetwork": { "vpc": "f8ef82e2-6e61-441b-9104-8206bca00a70", "subnet": "c9a9bab3-2041-4789-8976-01bcf5f627eb" }, "ContainerNetwork": { "mode": "overlay_l2", "cidr": "172.16.0.0/16" }, "kubernetesSvcIpRange": "10.247.0.0/16", "kubeProxyMode": "ipvs" } }' https://$CCE/api/v3/projects/$OS_PROJECT_ID/clusters | jq .

GUI example:

Thank you.

[oeotvos]

The API reference has been updated