[BUG]: drizzle-arktype mishandles char columns

### Report hasn't been filed before.

- [x] I have verified that the bug I'm about to report hasn't been filed before.

### What version of `drizzle-orm` are you using?

0.42.0

### What version of `drizzle-kit` are you using?

0.31.0

### Other packages

drizzle-arktype@0.1.2

### Describe the Bug

#### Undesired Behaviour

In drizzle-arktype, the generated schemas require char columns to be of an exact length, however (at least in MySQL) this is not a requirement of the database engine; whilst the stored values are right-padded to the specified length, they are trimmed when retrieved.

#### Reproduction

```ts
// schema.ts
import { char, mysqlTable } from 'drizzle-orm/mysql-core';
import { createSelectSchema } from 'drizzle-arktype';

export const t = mysqlTable('t', {
id: char('id', { length: 8 }).notNull(),
});

export const selectT = createSelectSchema(t);

// index.ts
import { drizzle } from 'drizzle-orm/mysql2';

import * as schema from './schema';

const db = drizzle(process.env.DATABASE_URL, { mode: 'default', schema });

await db.insert(schema.t).values({ id: 'AAAAAAA' });

const out = schema.selectT(await db.query.t.findFirst());
// ^? const out: ArkErrors
// out.summary: id must be exactly length 8 (was 7)
```

#### Desired Result

```ts
const out = schema.selectT(await db.query.t.findFirst());
// ^? const out: { id: string; }
```