[Go] Test snowflake:// URI format with different auth methods

Does the Snowflake driver provide a way to connect using JWT auth? I couldn't get this to work. When I try using a URI that contains a username but not a password (like `snowflake://user@host/...`), I get:

```
adbc_driver_manager.ProgrammingError: INVALID_ARGUMENT: [Snowflake] 260002: password is empty. Vendor code: 260002
```