[python] stat.st_rdev is not available on Windows, so do a safe getattr (closes #5380)

std/python/_std/sys/FileSystem.hx

@@ -43,7 +43,7 @@ class FileSystem {
 			dev : s.st_dev,
 			ino : s.st_ino,
 			nlink : s.st_nlink,
-			rdev : s.st_rdev,
+			rdev : python.internal.UBuiltins.getattr(s, "st_rdev", 0), // st_rdev is not available on Windows
 			mode : s.st_mode
 		}
 	}