fix(example): update iOS target version

Author: tompsota

example/ios/Podfile

@@ -38,6 +38,11 @@ target 'FreeraspReactNativeExample' do
       # necessary for Mac Catalyst builds
       :mac_catalyst_enabled => false
     )
+    installer.pods_project.targets.each do |target|
+      target.build_configurations.each do |config|
+        config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '12.4'
+      end
+    end
     __apply_Xcode_12_5_M1_post_install_workaround(installer)
   end
 end