chore(package): update del-cli to version 3.0.1

Closes #32

Author: greenkeeper[bot]

package.json

@@ -169,7 +169,7 @@
     "conventional-commits-detector": "^1.0.2",
     "conventional-recommended-bump": "^5.0.0",
     "cp-cli": "^2.0.0",
-    "del-cli": "^1.1.0",
+    "del-cli": "^3.0.1",
     "gh-pages": "^2.0.1",
     "html-loader": "^0.5.5",
     "jasmine-core": "~3.4.0",