Merge #3808

3808: Update gulp-if to the latest version 🚀 r=jniles a=greenkeeper[bot]


## The devDependency [gulp-if](https://github.com/robrich/gulp-if) was updated from `2.0.2` to `3.0.0`.
This version is **not covered** by your **current version range**.

If you don’t accept this pull request, your project will work just like it did before. However, you might be missing out on a bunch of new features, fixes and/or performance improvements from the dependency update.

---

**Publisher:** [robrich](https://www.npmjs.com/~robrich)
**License:** MIT

[Find out more about this release](https://github.com/robrich/gulp-if).

---

<details>
  <summary>FAQ and help</summary>

  There is a collection of [frequently asked questions](https://greenkeeper.io/faq.html). If those don’t help, you can always [ask the humans behind Greenkeeper](https://github.com/greenkeeperio/greenkeeper/issues/new).
</details>

---


Your [Greenkeeper](https://greenkeeper.io) bot 🌴



Co-authored-by: greenkeeper[bot] <23040076+greenkeeper[bot]@users.noreply.github.com>

package.json

@@ -121,7 +121,7 @@
     "eslint-plugin-import": "^2.16.0",
     "gulp": "^4.0.0",
     "gulp-concat": "^2.6.1",
-    "gulp-if": "^2.0.2",
+    "gulp-if": "^3.0.0",
     "gulp-iife": "^0.4.0",
     "gulp-less": "^4.0.1",
     "gulp-merge-json": "^1.3.1",