Add simple Node build (#19022)

The webpack plugin doesn't really need a separate prod and dev build.
It also needs to be ES2015 otherwise we can't extend native classes.

scripts/rollup/packaging.js

@@ -16,6 +16,7 @@ const {
 } = require('./utils');
 
 const {
+  NODE_ES2015,
   UMD_DEV,
   UMD_PROD,
   UMD_PROFILING,
@@ -42,6 +43,8 @@ function getPackageName(name) {
 
 function getBundleOutputPath(bundleType, filename, packageName) {
   switch (bundleType) {
+    case NODE_ES2015:
+      return `build/node_modules/${packageName}/cjs/${filename}`;
     case NODE_DEV:
     case NODE_PROD:
     case NODE_PROFILING: