[typo](docs)add be config doris_scanner_row_bytes (#15016)

docs/en/docs/admin-manual/config/be-config.md

@@ -367,6 +367,12 @@ There are two ways to configure BE configuration items:
 * Description: The maximum number of data rows returned by each scanning thread in a single execution
 * Default value: 16384
 
+#### `doris_scanner_row_bytes`
+
+* Description: single read execute fragment row bytes
+    - Note: If there are too many columns in the table, you can adjust this config if you encounter a `select *` stuck
+* Default value: 10485760
+
 #### `doris_scanner_thread_pool_queue_size`
 
 * Type: int32

docs/zh-CN/docs/admin-manual/config/be-config.md

@@ -378,6 +378,12 @@ BE 重启后该配置将失效。如果想持久化修改结果，使用如下
 * 描述：每个扫描线程单次执行最多返回的数据行数
 * 默认值：16384
 
+#### `doris_scanner_row_bytes`
+
+* 描述：每个扫描线程单次执行最多返回的数据字节
+  - 说明：如果表的列数太多,遇到 `select *` 卡主，可以调整这个配置
+* 默认值：10485760
+
 #### `doris_scanner_thread_pool_queue_size`
 
 * 类型：int32