Invalid count argument when password provide using random_password

### Describe the Bug

╷
│ Error: Invalid count argument
│
│ on .terraform/modules/ac2ui_documentdb_cluster/main.tf line 43, in resource "random_password" "password":
│ 43: count = module.this.enabled && var.master_password != "" ? 0 : 1
│
│ The "count" value depends on resource attributes that cannot be determined until apply, so Terraform cannot predict
│ how many instances will be created. To work around this, use the -target argument to first apply only the resources
│ that the count depends on.

### Expected Behavior

Terraform plan should be applied without this issue.

### Steps to Reproduce

set password to the value of an ssm param, for example:
```
resource "random_password" "ac2ui_master_password" {
length = 8
special = false
}
master_password = random_password.master_password.result
```

### Screenshots

_No response_

### Environment

_No response_

### Additional Context

_No response_

Start by inspecting .terraform/modules/ac2ui_documentdb_cluster/main.tf at line 43 and the random_password count expression. Reproduce the plan with master_password set from another random_password result, then trace the Terraform dependency behavior. Done means the documented configuration can be planned and applied without the invalid count argument.

Written by the indexing model from the issue text.