Move gulp to supported hash

Author: illepic

package-lock.json

@@ -32,7 +32,7 @@
     "eslint-plugin-jsx-a11y": "^2.2.1",
     "eslint-plugin-react": "^6.2.0",
     "glob": "^7.1.1",
-    "gulp": "github:gulpjs/gulp#6d71a65",
+    "gulp": "github:gulpjs/gulp#89acc5c",
     "gulp-babel": "^6.1.1",
     "gulp-cached": "^1.1.0",
     "gulp-concat": "^2.6.0",