docs: fix schema for /trace/:name/log

apps/emqx_management/src/emqx_mgmt_api_trace.erl

@@ -172,8 +172,8 @@ schema("/trace/:name/log") ->
             responses => #{
                 200 =>
                     [
-                        {items, hoconsc:mk(binary(), #{example => "TEXT-LOG-ITEMS"})}
-                        | fields(bytes) ++ fields(position)
+                        {items, hoconsc:mk(binary(), #{example => "TEXT-LOG-ITEMS"})},
+                        {meta, fields(bytes) ++ fields(position)}
                     ]
             }
         }

changes/v5.0.12-en.md

@@ -19,3 +19,5 @@
 ## Bug fixes
 
 - Fix that the obsolete SSL files aren't deleted after the ExHook config update [#9432](https://github.com/emqx/emqx/pull/9432).
+
+- Fix schema for `GET /trace/:name/log` [#9468](https://github.com/emqx/emqx/pull/9468).

changes/v5.0.12-zh.md

@@ -18,3 +18,5 @@
 ## 修复
 
 - 修复 ExHook 更新 SSL 相关配置后，过时的 SSL 文件没有被删除的问题 [#9432](https://github.com/emqx/emqx/pull/9432)。
+
+- [FIXME] Fix schema for `GET /trace/:name/log` [#9468](https://github.com/emqx/emqx/pull/9468).