[c++23] Add explicit STL includes (#1346)

LLVM's STL in Xcode 16.3 has removed a number of implicit internal header includes, meaning we need to be explicit about what STL headers we include for features like std::atomic. Add the necessary includes.

Author: eschwieb

wrappers/obj-c/ODWLogger_private.h

@@ -3,6 +3,7 @@
 // SPDX-License-Identifier: Apache-2.0
 //
 #include "objc_begin.h"
+#include <atomic>
 #include "ILogger.hpp"
 #import "ODWLogger.h"
 #import "ODWEventProperties.h"