fix(course/14): 修正 One.main 调用方式为 try

- 将 One.main() 调用修改为 try One.main() 以符合错误处理要求

Author: jinzhongjia

course/code/14/hello_world.zig

@@ -1,5 +1,5 @@
 pub fn main() !void {
-    One.main();
+    try One.main();
     try Two.main();
     try Three.main();
 }