Re-add webpack-manifest-plugin as a dependency

Author: Kocal

CHANGELOG.md

@@ -11,6 +11,8 @@
 If you manually specified the option `insert`, now it can only be a selector or the path to the module.
 Follow the [style-loader migration guide](https://github.com/webpack-contrib/style-loader/releases/tag/v4.0.0) to upgrade!
 
+* Re-add `webpack-manifest-plugin` dependency, which was previously embedded in https://github.com/symfony/webpack-encore/pull/921
+
 ## 5.1.0
 
 ### Features

lib/plugins/manifest.js

@@ -13,7 +13,7 @@
  * @import WebpackConfig from '../WebpackConfig'
  */
 
-const { WebpackManifestPlugin } = require('../webpack-manifest-plugin');
+const { WebpackManifestPlugin } = require('webpack-manifest-plugin');
 const PluginPriorities = require('./plugin-priorities');
 const applyOptionsCallback = require('../utils/apply-options-callback');
 const copyEntryTmpName = require('../utils/copyEntryTmpName');