win32: thread: use kernelbase.dll to get the thread name API

This is what the documentation [1] says we should use.
Kernel32.dll is just redirecting to api-ms-win-core-processthreads-l1-1-3.dll
but kernelbase.dll is not a redirection.

[1] https://docs.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-setthreaddescription

src/win32/thread.c

@@ -718,7 +718,7 @@ BOOL WINAPI DllMain (HANDLE hinstDll, DWORD fdwReason, LPVOID lpvReserved)
         case DLL_PROCESS_ATTACH:
         {
             HMODULE h;
-            h = GetModuleHandle(TEXT("kernel32.dll"));
+            h = GetModuleHandle(TEXT("kernelbase.dll"));
             if (h == NULL)
                 h = GetModuleHandle(TEXT("api-ms-win-core-processthreads-l1-1-3.dll"));
             if (h != NULL)