Merge pull request #2 from RDIL/dependabot/npm_and_yarn/grunt-contrib-uglify-approx-4.0.1

Update grunt-contrib-uglify requirement from ~3.3.0 to ~4.0.1

Author: RDIL

package.json

@@ -14,7 +14,7 @@
     "grunt-contrib-connect": "^1.0.2",
     "grunt-contrib-copy": "~1.0.0",
     "grunt-contrib-sass": "~1.0.0",
-    "grunt-contrib-uglify": "~3.3.0",
+    "grunt-contrib-uglify": "~4.0.1",
     "grunt-contrib-watch": "~1.0.0",
     "grunt-exec": "~1.0.1",
     "grunt-open": "0.2.3",