READ / WRITE to Catalog Commit Managed Table doesn't work

In DuckDB v1.5

Steps to reproduce:

1 - Create a Managed Table in any Databricks workspace

2 - Run basic DuckDB commands
```INSTALL unity_catalog;
LOAD unity_catalog;
CREATE SECRET (
TYPE unity_catalog,
TOKEN 'xxx',
ENDPOINT 'WS',
AWS_REGION 'region'
);
ATTACH 'catalog' AS catalog (TYPE unity_catalog, DEFAULT_SCHEMA 'main');
USE CATALOG;
SELECT * FROM table;
```

Output:

```
DEBUG:
{'request': {'type': POST, 'url': 'https://WS.cloud.databricks.com/api/2.1/unity-catalog/temporary-table-credentials', 'headers': {User-Agent='duckdb/v1.5.3(osx_arm64) cli 14eca11bd9', Authorization=Bearer token, Content-Type=application/json}, 'start_time': '2026-06-11 11:59:45.787732', 'duration_ms': 497}, 'response': {'status': BadRequest_400, 'reason': Bad Request, 'headers': {date='Thu, 11 Jun 2026 11:59:46 GMT', x-request-id=4eeea8cd-4ba7-41c0-ad58-db65c3b20807, content-length=948, strict-transport-security='max-age=31536000; includeSubDomains; preload', x-databricks-org-id=xxx, server-timing='request_id;dur=0;desc="4eeea8cd-4ba7-41c0-ad58-db65c3b20807", client_protocol;dur=0;desc="HTTP/1.1"', server=databricks, vary=Accept-Encoding, alt-svc=clear, x-content-type-options=nosniff, content-type=application/json}}}

DEBUG:
{'database': temp, 'type': Rollback, 'transaction_id': 4611686018427388057}

IO Error:
POST Request to 'https://ws.cloud.databricks.com/api/2.1/unity-catalog/temporary-table-credentials' failed: 'Bad Request'
```

However the same setup works with External Tables