Update webpack deps (#2310)

Summary:
**Summary**

This diff update build-related deps. We were creating more than one instance of `webpack-stream`, which is an error on the latest one, so I fix that too.

**Test Plan**

build && playground example
Pull Request resolved: #2310

Differential Revision: D19598315

Pulled By: mrkev

fbshipit-source-id: 5430f96576cadbd4f16b5a597dc77b9cc026d002

Author: mrkev

gulpfile.js

@@ -7,28 +7,26 @@
 
 'use strict';
 
-var babel = require('gulp-babel');
+var packageData = require('./package.json');
+var moduleMap = require('./scripts/module-map');
+var fbjsConfigurePreset = require('babel-preset-fbjs/configure');
 var del = require('del');
+var gulpCheckDependencies = require('fbjs-scripts/gulp/check-dependencies');
+var gulp = require('gulp');
+var babel = require('gulp-babel');
 var cleanCSS = require('gulp-clean-css');
 var concatCSS = require('gulp-concat-css');
 var derequire = require('gulp-derequire');
 var flatten = require('gulp-flatten');
-var gulp = require('gulp');
-var gulpif = require('gulp-if');
-var gulpUtil = require('gulp-util');
 var header = require('gulp-header');
-var packageData = require('./package.json');
+var gulpif = require('gulp-if');
 var rename = require('gulp-rename');
+var gulpUtil = require('gulp-util');
 var StatsPlugin = require('stats-webpack-plugin');
 var through = require('through2');
 var UglifyJsPlugin = require('uglifyjs-webpack-plugin');
 var webpackStream = require('webpack-stream');
 
-var fbjsConfigurePreset = require('babel-preset-fbjs/configure');
-var gulpCheckDependencies = require('fbjs-scripts/gulp/check-dependencies');
-
-var moduleMap = require('./scripts/module-map');
-
 var paths = {
   dist: 'dist',
   lib: 'lib',
@@ -70,7 +68,12 @@ var COPYRIGHT_HEADER = `/**
  */
 `;
 
+var wpStream = null;
+
 var buildDist = function(opts) {
+  if (wpStream !== null) {
+    return wpStream;
+  }
   var webpackOpts = {
     externals: {
       immutable: {
@@ -114,14 +117,15 @@ var buildDist = function(opts) {
   if (!opts.debug) {
     webpackOpts.plugins.push(new UglifyJsPlugin());
   }
-  return webpackStream(webpackOpts, null, function(err, stats) {
+  wpStream = webpackStream(webpackOpts, null, function(err, stats) {
     if (err) {
       throw new gulpUtil.PluginError('webpack', err);
     }
     if (stats.compilation.errors.length) {
       gulpUtil.log('webpack', '\n' + stats.toString({colors: true}));
     }
   });
+  return wpStream;
 };
 
 gulp.task(

package.json

@@ -71,7 +71,7 @@
     "gulp-flatten": "^0.4.0",
     "gulp-header": "^2.0.9",
     "gulp-if": "^3.0.0",
-    "gulp-rename": "^1.4.0",
+    "gulp-rename": "2",
     "gulp-util": "^3.0.6",
     "jest": "^24.9.0",
     "prettier": "1.19.1",
@@ -80,8 +80,8 @@
     "react-test-renderer": "^16.0.0",
     "stats-webpack-plugin": "^0.6.2",
     "through2": "^3.0.1",
-    "uglifyjs-webpack-plugin": "^1.1.6",
-    "webpack-stream": "^4.0.0"
+    "uglifyjs-webpack-plugin": "2",
+    "webpack-stream": "5.2.1"
   },
   "devEngines": {
     "node": "10.x || 12.x || 13.x",