Specific value inside a raw marks response as failed

Step to repoduce:
```sql
SELECT 
      'mutation_123456' AS mutation_id,
      'Code: 243. DB::Exception: Cannot reserve 61.64 GiB, not enough space. (NOT_ENOUGH_SPACE)' AS latest_fail_reason
```

Expected: HTTP 200 and no error
Current behaviour: marks response as failed and throws an TransportException