Update limited API version for _scproxy.c

Author: swtaarrs

Modules/_scproxy.c

@@ -3,10 +3,10 @@
  * using the SystemConfiguration framework.
  */
 
-// Need limited C API version 3.12 for Py_MOD_PER_INTERPRETER_GIL_SUPPORTED
+// Need limited C API version 3.13 for Py_mod_gil
 #include "pyconfig.h"   // Py_GIL_DISABLED
 #ifndef Py_GIL_DISABLED
-#  define Py_LIMITED_API 0x030c0000
+#  define Py_LIMITED_API 0x030d0000
 #endif
 
 #include <Python.h>