sowner

Можно использовать file-replace-laoder
https://www.npmjs.com/package/file-replace-loader

и прописать его в webpack config

//webpack.config.js
 
const resolve = require('path').resolve;
 
module.exports = {
  //...
  module: {
    rules: [{
      test: /\.configuration\.js$/,
      loader: 'file-replace-loader',
      options: {
        condition: process.env.NODE_ENV === 'development',
        replacement: resolve('./configuration.dev.js'),
        async: true,
      }
    }]
  }
}