Dictionary with same fields for keys and attributes fails

**Describe the unexpected behaviour**
I'm creating a dictionary that has 3 fields that are also used in the PRIMARY KEY.

Example:
```
CREATE DICTIONARY test (
user_name String,
from_country String,
to_country String

)
PRIMARY KEY user_name, from_country, to_country
.....
```
Which results in an error: `DB::Exception: Dictionary has no attributes defined `

**How to reproduce**
* Which ClickHouse server version to use: 21.3.9.83

**Expected behavior**
The XML version of the dictionary allows for this so expected this to work with the DDL version.