configureDefinePlugin(definePluginOptionsCallback = () => {}) {
        webpackConfig.configureDefinePlugin(definePluginOptionsCallback);

        return this;
    }
Allows you to configure the options passed to the DefinePlugin.
A list of available options can be found at https://webpack.js.org/plugins/define-plugin/

For example:

```
Encore.configureDefinePlugin((options) => {
    options.VERSION = JSON.stringify('1.0.0');
})
```

@param {OptionsCallback<ConstructorParameters<typeof webpack.DefinePlugin>[0]>} definePluginOptionsCallback
@returns {Encore}