hapi, joi, nushell, varnish: add news entry

assets/javascripts/news.json

@@ -1,4 +1,8 @@
 [
+  [
+    "2023-10-09",
+    "New documentations: <a href=\"/hapi/\">hapi</a>, <a href=\"/joi/\">joi</a>, <a href=\"/nushell/\">Nushell</a>, <a href=\"/varnish/\">Varnish</a>"
+  ],
   [
     "2023-08-24",
     "New documentation: <a href=\"/fluture/\">Fluture</a>"