[FEATURE]: allow to use ssl at dbCredentials with url

### 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

For now in typings it union type of definition dbCredentials

```ts
{
dialect: Verify;
dbCredentials: ({
host: string;
port?: number;
user?: string;
password?: string;
database: string;
ssl?: boolean | 'require' | 'allow' | 'prefer' | 'verify-full' | ConnectionOptions;
} & {}) | {
url: string;
};
}
```

I want to use both `url` & `ssl` keys

```ts
import type { Config } from "drizzle-kit"

export default {
schema: "./src/db/schema.ts",
out: "./drizzle",
dialect: "postgresql",
dbCredentials: {
url: process.env.DATABASE_URL as string
}
} satisfies Config
```

like in postgres client initialization

```ts
const client = postgres(process.env.DATABASE_URL as string, {
ssl: "require",
});
export const db = drizzle(client);
```

workaround is:

```ts
import type { Config } from "drizzle-kit";

const url = new URL(process.env.DATABASE_URL as string);

if (process.env.USE_SSL) {
url.searchParams.append("sslmode", "require");
url.searchParams.append("ssl", "true");
}

export default {
schema: "./src/db/schema.ts",
out: "./drizzle",
dialect: "postgresql",
casing: "snake_case",
dbCredentials: {
url: url.toString(),
},
} satisfies Config;
```