Add time zone parameter to stackit_ske_cluster; maintenance_schedule

[haeussermanp]

Problem description

Hi, I noticed that for "stackit_ske_cluster (Resource)" in the "maintenance" schema, you cannot specify a time zone. That would be really good, as otherwise it is not always very clear and can cause problems in countries like Germany with the time change.

Proposed solution

The option already exists for the "hibernation" schema. This could possibly be adopted. I added a example for the maintenance_schedule with a extra string from the "hibernation" schema. That would make things so much clearer.

 maintenance_schedule = {
    timezone = "Europe/Berlin" # new parameter
    enable_kubernetes_version_updates    = true
    enable_machine_image_version_updates = true
    start                                = "01:00:00Z"
    end                                  = "02:00:00Z"
  }

[Fyusel]

Hi @haeussermanp,
thank you for reporting this issue. Currently this is not provided by the API therefore I will forward this to the corresponding team.