build as *.bundle.min.js

so that tools (my primary use case: ack)  understand this is minified

index.js

@@ -5,17 +5,17 @@ import * as monaco from 'monaco-editor';
 self.MonacoEnvironment = {
 	getWorkerUrl: function (moduleId, label) {
 		if (label === 'json') {
-			return window.monacoEditorWebPackResourceBaseUrl + './json.worker.bundle.js';
+			return window.monacoEditorWebPackResourceBaseUrl + './json.worker.bundle.min.js';
 		}
 		if (label === 'css') {
-			return window.monacoEditorWebPackResourceBaseUrl + './css.worker.bundle.js';
+			return window.monacoEditorWebPackResourceBaseUrl + './css.worker.bundle.min.js';
 		}
 		if (label === 'html') {
-			return window.monacoEditorWebPackResourceBaseUrl + './html.worker.bundle.js';
+			return window.monacoEditorWebPackResourceBaseUrl + './html.worker.bundle.min.js';
 		}
 		if (label === 'typescript' || label === 'javascript') {
-			return window.monacoEditorWebPackResourceBaseUrl + './ts.worker.bundle.js';
+			return window.monacoEditorWebPackResourceBaseUrl + './ts.worker.bundle.min.js';
 		}
-		return window.monacoEditorWebPackResourceBaseUrl + './editor.worker.bundle.js';
+		return window.monacoEditorWebPackResourceBaseUrl + './editor.worker.bundle.min.js';
 	}
 }

webpack.config.js

@@ -14,7 +14,7 @@ module.exports = {
 	},
 	output: {
 		globalObject: 'self',
-		filename: '[name].bundle.js',
+		filename: '[name].bundle.min.js',
 		path: path.resolve(__dirname, 'dist'),
 	},
 	module: {