COUNTER_Robots_list.json: add newspaperjs

This is a new bot with a default user agent of "newspaperjs" with
no version string or any extra text.

Author: alanorth

COUNTER_Robots_list.json

@@ -867,6 +867,12 @@
     "description": "Python 3 library for news, full-text, and article metadata extraction.",
     "url": "https://github.com/codelucas/newspaper"
   },
+  {
+    "pattern": "newspaperjs",
+    "last_changed": "2023-11-23",
+    "description": "JavaScript news extraction and scraping.",
+    "url": "https://github.com/flickz/newspaperjs"
+  },
   {
     "pattern": "ng\\/2\\.",
     "last_changed": "2017-08-08"