⬆️ Update dependency rimraf to v6

Author: renovate[bot]

package.json

@@ -46,7 +46,7 @@
     "@types/webpack": "^4.4.25",
     "prettier": "^2.0.0",
     "pug": "^2.0.3",
-    "rimraf": "^3.0.0",
+    "rimraf": "^6.0.0",
     "tsconfig-gluons": "^1.0.1",
     "tslint": "^6.0.0",
     "tslint-config-gluons": "^2.1.0",