Add RubyJax - Open Hax November 2025

Author: marcoroth

_data/meetups.yml

@@ -7887,3 +7887,10 @@
   start_time: 19:00:00 EDT
   end_time: 21:00:00 EDT
   url: https://www.meetup.com/miamirb/events/pdvctsyhcpbwb
+
+- name: RubyJax - Open Hax November 2025
+  location: Jacksonville, FL
+  date: 2025-11-18
+  start_time: 18:30:00 EDT
+  end_time: 20:00:00 EDT
+  url: https://www.meetup.com/rubyjax/events/llklbtyhcpbxb