fix(pointcloud_preprocessor): fix documentation (autowarefoundation#7878)

fix: fix wrong name for json file

Signed-off-by: vividf <yihsiang.fang@tier4.jp>
Co-authored-by: Kenzo Lobos Tsunekawa <kenzo.lobos@tier4.jp>

Author: vividf

sensing/pointcloud_preprocessor/docs/distortion-corrector.md

@@ -36,7 +36,7 @@ Please note that the processing time difference between the two distortion metho
 
 ### Core Parameters
 
-{{ json_to_markdown("sensing/pointcloud_preprocessor/schema/distortion_corrector.schema.json") }}
+{{ json_to_markdown("sensing/pointcloud_preprocessor/schema/distortion_corrector_node.schema.json") }}
 
 ## Launch