Stop using the now deprecated std::is_trivial.

std::is_trivial is deprecated in C++26. Using gcc 15 and C++26 yields
this warning:

/data/mwrep/res/mdw/SIOTF/internal/osp/aws_sdk/25-0-0-1/include/aws/core/utils/memory/AWSMemory.h: In function 'Aws::UniquePtr<T> Aws::MakeUnique(const char*, ArgTypes&& ...)':
/data/mwrep/res/mdw/SIOTF/internal/osp/aws_sdk/25-0-0-1/include/aws/core/utils/memory/AWSMemory.h:307:56: error: 'template<class _Tp> struct std::is_trivial' is deprecated: use 'is_trivially_default_constructible && is_triviall
y_copyable' instead [-Werror=deprecated-declarations]
  307 |         static_assert(!std::is_array<T>::value || std::is_trivial<T>::value,
      |                                                        ^~~~~~~~~~

So do as gcc suggests, and replace it by a combination of
is_trivially_default_constructible and is_trivially_copyable.

Author: Romain-Geissler-1A

src/aws-cpp-sdk-core/include/aws/core/utils/memory/AWSMemory.h

@@ -304,15 +304,15 @@ namespace Aws
     template<typename T, typename ...ArgTypes>
     UniquePtr<T> MakeUnique(const char* allocationTag, ArgTypes&&... args)
     {
-        static_assert(!std::is_array<T>::value || std::is_trivial<T>::value,
+        static_assert(!std::is_array<T>::value || (std::is_trivially_default_constructible<T>::value && std::is_trivially_copyable<T>::value),
                 "This wrapper/function is not designed to support non-trivial arrays.");
         return UniquePtr<T>(Aws::New<T>(allocationTag, std::forward<ArgTypes>(args)...));
     }
 
     template<typename T, typename D = Deleter<T>, typename ...ArgTypes>
     UniquePtrSafeDeleted<T, D> MakeUniqueSafeDeleted(const char* allocationTag, ArgTypes&&... args)
     {
-        static_assert(!std::is_array<T>::value || std::is_trivial<T>::value,
+        static_assert(!std::is_array<T>::value || (std::is_trivially_default_constructible<T>::value && std::is_trivially_copyable<T>::value),
                       "This wrapper/function is not designed to support non-trivial arrays.");
 
         return UniquePtrSafeDeleted<T, D>(Aws::New<T>(allocationTag, std::forward<ArgTypes>(args)...), D());