fix: bump update-notifier to v6.0.0 (#2029)

Fix for this issue: #2023

Author: gaborszita

package.json

@@ -66,7 +66,7 @@
     "supports-color": "^5.5.0",
     "touch": "^3.1.0",
     "undefsafe": "^2.0.5",
-    "update-notifier": "^5.1.0"
+    "update-notifier": "^6.0.0"
   },
   "version": "0.0.0-development",
   "funding": {