Hardcode ruby 3.2 as other libs do now

Author: americodls

instrumentation/factory_bot/opentelemetry-instrumentation-factory_bot.gemspec

@@ -23,7 +23,7 @@ Gem::Specification.new do |spec|
                Dir.glob('*.md') +
                ['LICENSE', '.yardopts']
   spec.require_paths = ['lib']
-  spec.required_ruby_version = ">= #{File.read(File.expand_path('../../gemspecs/RUBY_REQUIREMENT', __dir__))}"
+  spec.required_ruby_version = '>= 3.2'
 
   spec.add_dependency 'opentelemetry-instrumentation-base', '~> 0.24.0'