Meetup Updates from Austin.rb and Paris.rb (#1112)

Co-authored-by: Marco Roth <marco.roth@intergga.ch>

Author: github-actions[bot]

_data/meetups.yml

@@ -6677,7 +6677,7 @@
   url: https://www.meetup.com/charlotte-rb/events/308448570
 
 - name: Paris.rb - July 2025
-  location: paris , France
+  location: Paris, France
   date: 2025-07-01
   start_time: 19:15:00 CEST
   end_time: 21:15:00 CEST
@@ -6767,7 +6767,7 @@
   end_time: 11:00:00 PDT
   url: https://www.meetup.com/ocruby/events/sdczltyhckbkb
 
-- name: Austin.rb - Placeholder (Tech Talk) July 2025
+- name: Austin.rb - Programming Challenge, should you choose to accept it
   location: Austin, TX
   date: 2025-07-08
   start_time: 18:30:00 CDT