Required attribute for mondoo_policies data source

[sibuthomasmathew]

Describe the bug
A clear and concise description of what the bug is.

In the documentation, space_id and space_mrn are showed as optional

However, applying terraform without them throws the following error:

╷
│ Error: Invalid Attribute Combination
│
│   with data.mondoo_policies.policies_data,
│   on k8s.tf line 23, in data "mondoo_policies" "policies_data":
│   23: data "mondoo_policies" "policies_data" {
│
│ No attribute specified when one (and only one) of [space_mrn] is required
╵
╷
│ Error: Invalid Attribute Combination
│
│   with data.mondoo_policies.policies_data,
│   on k8s.tf line 23, in data "mondoo_policies" "policies_data":
│   23: data "mondoo_policies" "policies_data" {
│
│ No attribute specified when one (and only one) of [space_id] is require

Even in the code, the attributes are marked optional

To Reproduce
Steps to reproduce the behavior:

Apply the following terraform code

data "mondoo_policies" "policies_data" {
  catalog_type  = "POLICY"
  assigned_only = true
}

output "policies_mrn" {
  value       = [for policy in data.mondoo_policies.policies_data.policies : policy.policy_mrn]
  description = "The MRN of the policies in the space according to the filter criteria."
}

Expected behavior
A clear and concise description of what you expected to happen.

Highlight in the documentation either space_id and space_mrn is required. Not sure whether it would need changes to the provider source code