fix(openapi-typescript): build cjs support astToString export

[liangskyli]

Changes

fix: #1482

How to Review

const openapiTS = require('openapi-typescript').default;
const { astToString } = require('openapi-typescript');
// output: [Function: astToString] [AsyncFunction: openapiTS]
console.log('output:',astToString, openapiTS);

Checklist

• Unit tests updated
• docs/ updated (if necessary)
• pnpm run update:examples run (only applicable for openapi-typescript)

[changeset-bot]

⚠️ No Changeset found

Latest commit: 41dd3cd

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[drwpow]

This is great proof of that 🙂

[drwpow]

Looks good! Also the original issue was against 7.x beta, so any/all breaking changes are still OK at this point. If you wanted to make any improvements to 6.x you’re also welcome to in a followup PR, although that may be a little stricter on preventing breaking changes.