fix(package): update through2 to the latest version 🚀 (#7)

Author: greenkeeper[bot]

package.json

@@ -32,7 +32,7 @@
   "dependencies": {
     "cloudinary": "^1.11.0",
     "plugin-error": "^1.0.1",
-    "through2": "^2.0.3",
+    "through2": "^3.0.0",
     "vinyl": "^2.1.0",
     "vinyl-file": "^3.0.0"
   },