[DOCS]: Remove calling `dotenv` in `drizzle.config.ts`

### Enhancement hasn't been filed before. - [x] I have verified this enhancement I'm about to request hasn't been suggested before. ### Describe the enhancement you want to request > Environment variables are now fetched automatically > > As mentioned many times, you can finally skip fetching environment variables to use with the drizzle.config file. Drizzle Kit will handle this process automatically. https://github.com/drizzle-team/drizzle-kit-mirror/releases/tag/v0.20.0 ```ts // drizzle.config.ts import { config } from 'dotenv'; import { defineConfig } from 'drizzle-kit'; config({ path: '.env' }); // this seems unnecessary export default defineConfig({ schema: './src/db/schema.ts', out: './migrations', dialect: 'turso', dbCredentials: { url: process.env.TURSO_CONNECTION_URL!, authToken: process.env.TURSO_AUTH_TOKEN!, }, }); ``` ```diff - config({ path: '.env' }); ``` https://orm.drizzle.team/docs/tutorials/drizzle-with-turso#setup-drizzle-config-file