```release-note:enhancement
resource/aws_ssm_document: Add plan time validation for `attachments_source`, `attachments_source.name`, `attachments_source.values`, `target_type`, `version_name`
```

```release-note:enhancement
resource/aws_ssm_document: Wait for document to be created/update/deleted
```

```release-note:enhancement
resource/aws_ssm_document: Support all valid values for `document_type`
```
