Fix build.

Mysticial · Mysticial · commit 0694e027e382 · 2025-05-30T00:15:14.000-07:00
diff --git a/Common/Cpp/LifetimeSanitizer.h b/Common/Cpp/LifetimeSanitizer.h
@@ -8,6 +8,7 @@
 #define PokemonAutomation_LifetimeSanitizer_H
 
 #include <stdint.h>
+#include <cstddef>
 
 #define PA_SANITIZER_ENABLE
 
