[FEATURE]: Add timestamp mode option to drizzle.config.ts

### Feature hasn't been suggested before.

- [X] I have verified this feature I'm about to request hasn't been suggested before.

### Describe the enhancement you want to request

Add ability to set `mode` to `date` instead of `string` for `timestamp` columns when creating DB schemas using Drizzle within the `drizzle.config.ts`. Currently, you have to modify the output file to change the `mode` to `date` manually after the fact.

e.g.

```
created_at: timestamp({withTimezone: true, mode: "date"}),
```