Fix #139199: Grease Pencil: Update compositor node when pass is toggled

Compositor node sockets should be updated when toggling grease pencil
pass in the pass list. It was missing a `rna_ViewLayer_pass_update`, now
it will work as expected.

Pull Request: https://projects.blender.org/blender/blender/pulls/139215

source/blender/makesrna/intern/rna_layer.cc

@@ -688,7 +688,7 @@ void RNA_def_view_layer(BlenderRNA *brna)
       prop, nullptr, "grease_pencil_flags", GREASE_PENCIL_AS_SEPARATE_PASS);
   RNA_def_property_ui_text(
       prop, "Grease Pencil", "Deliver Grease Pencil render result in a separate pass");
-  RNA_def_property_update(prop, NC_SCENE | ND_LAYER, nullptr);
+  RNA_def_property_update(prop, NC_SCENE | ND_RENDER_OPTIONS, "rna_ViewLayer_pass_update");
 
   /* debug update routine */
   func = RNA_def_function(srna, "update", "rna_ViewLayer_update_tagged");