gh-152798: Return None for lock on WASI to satisfy test_sys

Author: Wojusensei

Python/thread.c

@@ -335,7 +335,7 @@ PyThread_GetInfo(void)
 #ifdef HAVE_PTHREAD_STUBS
     value = Py_NewRef(Py_None);
 #else
-#ifdef MS_WINDOWS
+#if defined(MS_WINDOWS) || defined(__wasi__)
     value = Py_NewRef(Py_None);
 #else
     value = PyUnicode_FromString("semaphore");
@@ -365,7 +365,6 @@ PyThread_GetInfo(void)
     return threadinfo;
 }
 
-
 void
 _PyThread_FiniType(PyInterpreterState *interp)
 {