Add missing params to on_postprocessor_task_results docs

docs/development/writing_plugins/plugin_runner_types.mdx

@@ -243,6 +243,8 @@ Just prior to the task cache directory cleanup.
 `on_postprocessor_task_results(data)`
 
 ##### Provided data:
+  - **`final_cache_path`** *[string]* - The path to the final cache file that was then used as the source for all destination files.
+  - **`library_id`** *[integer]* - The library that the current task is associated with.
   - **`task_processing_success`** *[boolean]* - Specifies if all task processes complete successfully.
   - **`file_move_processes_success`** *[boolean]* - Specifies if all postprocessor movement tasks complete successfully.
   - **`destination_files`** *[list]* - All file paths created by postprocessor file movements.
@@ -261,6 +263,8 @@ def on_postprocessor_task_results(data):
     Runner function - provides a means for additional postprocessor functions based on the task success.
 
     The 'data' object argument includes:
+        final_cache_path                - The path to the final cache file that was then used as the source for all destination files.
+        library_id                      - The library that the current task is associated with.
         task_processing_success         - Boolean, did all task processes complete successfully.
         file_move_processes_success     - Boolean, did all postprocessor movement tasks complete successfully.
         destination_files               - List containing all file paths created by postprocessor file movements.