Postgres enum import not fetching values with Prisma

Describe the bug Hi team, love your work. It's very close to saving us a lot of time - we're just running into a small issue.

We generate enums in Postgres with Prisma. You can see the type in information_schema.columns below.

To Reproduce

Schema (if applicable)

table_schema             | public
table_name               | AllergyIntolerance
column_name              | clinicalStatus
ordinal_position         | 3
column_default           |
is_nullable              | NO
data_type                | USER-DEFINED
character_maximum_length |
character_octet_length   |
numeric_precision        |
numeric_precision_radix  |
numeric_scale            |
datetime_precision       |
interval_type            |
interval_precision       |
character_set_catalog    |
character_set_schema     |
character_set_name       |
collation_catalog        |
collation_schema         |
collation_name           |
domain_catalog           |
domain_schema            |
domain_name              |
udt_schema               | public
udt_name                 | AllergyIntoleranceClinicalStatus
scope_catalog            |
scope_schema             |
scope_name               |
maximum_cardinality      |
dtd_identifier           | 3
is_self_referencing      | NO
is_identity              | NO
identity_generation      |
identity_start           |
identity_increment       |
identity_maximum         |
identity_minimum         |
identity_cycle           | NO
is_generated             | NEVER
generation_expression    |
is_updatable             | YES

The values exist in psql:

ubuntu=# \dT+ "AllergyIntoleranceClinicalStatus"
List of data types
-[ RECORD 1 ]-----+-----------------------------------
Schema            | public
Name              | "AllergyIntoleranceClinicalStatus"
Internal name     | AllergyIntoleranceClinicalStatus
Size              | 4
Elements          | active                            +
                  | inactive                          +
                  | resolved
Owner             | postgres
Access privileges |
Description       |

For some reason it correctly identifies a categorical field but doesn't fetch the values.
```
...
"clinicalStatus": {
  "type": "string",
  "categorical": {}
},
...
```

Expected behavior We would expect the imported schema file to look like

...
    "clinicalStatus": {
      "type": "string",
      "categorical": {"active", "inactive", "resolved"}
    },
...

Environment (please complete the following information):

OS: MacOS
Version: synth 0.6.9

shuttle-hq / synth

Postgres enum import not fetching values with Prisma #445