fix: pin CFPropertyList >= 3.0.9 to fix Ruby 3.4 kconv removal

CFPropertyList < 3.0.9 requires kconv which was removed from Ruby 3.4
standard library (there is no kconv gem). Pinning to 3.0.9+ uses a version
that no longer depends on kconv.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: msluszniak

apps/bare_rn/Gemfile

@@ -14,4 +14,4 @@ gem 'bigdecimal'
 gem 'logger'
 gem 'benchmark'
 gem 'mutex_m'
-gem 'kconv'
+gem 'CFPropertyList', '>= 3.0.9'