Fix TSA warnings (#12950)
Fix two warnings:
1. Warning: Avoid calling new and delete explicitly, use
std::make_unique<T> instead (r.11).
Fix: new is replaced by creating unique_ptr and unique_ptr.release
delete is replaced by unique_ptr.reset and unique_ptr's destructor.
2. Warning: Buffer overrun while writing to 'cpu_buffers_info->buffers':
the writable size is 'buffers.public: unsigned __int64 __cdecl
std::vector<void \*,class std::allocator<void\*> >::size(void)const ()
\* 8' bytes, but '16' bytes might be written.
Fix: Replace void* with cudaStream_t and void** with
std::vector<cudaStream_t>.
