docs: [aws_workspaces_workspace] update some attributes from "Argument Reference" to "Attribute Reference"

[kuredev]

Description

https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/workspaces_workspace

In the aws_workspaces_workspace data source, several fields defined as arguments currently either cause errors or are ignored when specified.
Based on verification, these fields appear to function as attributes rather than arguments.
The following table summarizes the observed behavior for each field.

Verified with Terraform Provider version 6.17.0.

Argument-to-Attribute Changes

Attribute Name	Changed (Arg → Attr)	Notes
region	–
bundle_id	◯	Causes error if used as argument
directory_id	–
root_volume_encryption_enabled	◯	Causes error if used as argument
tags	◯	Argument input is ignored
user_name	–
user_volume_encryption_enabled	◯	Causes error if used as argument
volume_encryption_key	◯	Causes error if used as argument
workspace_id	–
workspace_properties	◯	Causes error if used as argument
compute_type_name	◯	Inside workspace_properties
root_volume_size_gib	◯	Inside workspace_properties
running_mode	◯	Inside workspace_properties
running_mode_auto_stop_timeout_in_minutes	◯	Inside workspace_properties
user_volume_size_gib	◯	Inside workspace_properties
id	–
ip_address	–
compute_name	–
state	–

Reproduction Steps

Steps to reproduce for fields that cause an error when used as arguments (e.g. bundle_id)

main.tf

data "aws_workspaces_workspace" "ws1" {
  workspace_id = "ws-xxxxxxxxx"
  bundle_id = "wsb-xxxxxxxxx"
}

output "ws1" {
  value = data.aws_workspaces_workspace.ws1
}

CLI

$ terraform apply                                                                                                   
╷
│ Error: Value for unconfigurable attribute
│ 
│   with data.aws_workspaces_workspace.w,
│   on main.tf line 19, in data "aws_workspaces_workspace" "ws1":
│   19:   bundle_id = "wsb-xxxxxxxxx"
│ 
│ Can't configure a value for "bundle_id": its value will be decided automatically based on the result of applying this
│ configuration.

References

#14135
https://github.com/hashicorp/terraform-provider-aws/blob/main/internal/service/workspaces/workspace_data_source.go

[github-actions]

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