bump ios dependency to 5.2.13

Author: nan-li

react-native-onesignal.podspec

@@ -22,5 +22,5 @@ Pod::Spec.new do |s|
   # pod 'React', :path => '../node_modules/react-native/'
 
   # The Native OneSignal-iOS-SDK XCFramework from cocoapods.
-  s.dependency 'OneSignalXCFramework', '5.2.12'
+  s.dependency 'OneSignalXCFramework', '5.2.13'
 end