Update dependency rimraf to v3 (#210)

Author: renovate-bot

package.json

@@ -49,7 +49,7 @@
     "lint-staged": "9.2.0",
     "np": "5.0.3",
     "prettier": "1.18.2",
-    "rimraf": "2.6.3",
+    "rimraf": "3.0.0",
     "rollup": "0.67.4",
     "rollup-plugin-copy": "3.1.0",
     "tslint": "5.18.0",