fix: change C++ headers to C headers

Signed-off-by: Kaiyao Duan <[email protected]>

tests/test_env_detect.cpp

@@ -1,7 +1,7 @@
 #include "cpu.h"
-#include <cstdio>
-#include <cstdlib>
-#include <cstring>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 
 // Improved version of is_option_disabled function that doesn't modify the original string
 bool is_option_disabled(const char* options, const char* option)