CommonJS version tries to require() an ES Module and breaks

Maybe I'm missing something, but, to my understanding, the CommonJS version can't work because it forces a `require()` of an ES Module:
```javascript
var effector_mjs = require('effector/effector.mjs');
```

Which of course leads to this error:
```
Error: require() of ES Module [EDITED]/node_modules/effector/effector.mjs not supported.
Instead change the require of [EDITED]/node_modules/effector/effector.mjs to a dynamic import() which is available in all CommonJS modules.
```