chore: update flutter/scripts/update-cocoa.sh to 8.15.1

Author: web-flow

flutter/ios/sentry_flutter.podspec

@@ -12,7 +12,7 @@ Sentry SDK for Flutter with support to native through sentry-cocoa.
                          :tag => s.version.to_s }
   s.source_files     = 'Classes/**/*'
   s.public_header_files = 'Classes/**/*.h'
-  s.dependency 'Sentry/HybridSDK', '8.15.0'
+  s.dependency 'Sentry/HybridSDK', '8.15.1'
   s.ios.dependency 'Flutter'
   s.osx.dependency 'FlutterMacOS'
   s.ios.deployment_target = '11.0'