Replace <ctype.h> with <cctype> in debug_dump.h

Use the C++ standard header <cctype> instead of the C header <ctype.h> for consistency with the C++ codebase.

Author: vanvught

common/include/firmware/debug/debug_dump.h

@@ -28,7 +28,7 @@
 
 #include <cstdint>
 #include <cstdio>
-#include <ctype.h>
+#include <cctype>
 
 #include "firmware/debug/debug_config.h"