Update Ruby Fusion identifiers (#737)

* Update Ruby Fusion identifiers

---------

Co-authored-by: Marco Roth <[email protected]>

Author: bkuhlmann

_data/meetup_groups.yml

@@ -564,7 +564,7 @@
 #   name:
 #   service: meetupdotcom
 
-- id: ruby-fusion
+- id: ruby_fusion
   name: Ruby Fusion
   service: luma
   ical_url: https://api.lu.ma/ics/get?entity=calendar&id=cal-HxTn4dLUlMlzEQX

_data/meetups.yml

@@ -825,7 +825,7 @@
   date: 2024-06-06
   start_time: 18:30:00 MDT
   end_time: 20:30:00 MDT
-  url: https://lu.ma/ruby_fusion
+  url: https://lu.ma/evt-gZUrAREsvN62jAm
 
 - name: Ruby Montevideo - Meetup June 2024
   location: Montevideo, Uruguay