Fix #122159: GPv3: Missing update after selecting frames in multiframe edit

The `ANIM_animdata_update` wasn't handling the GPv3 cases.
This meant that e.g. changing the selection of keyframes did not
cause an update to be triggered.

This fixes the issue by making sure we call `ANIM_list_elem_update`
for all the grease pencil channel types.

Pull Request: https://projects.blender.org/blender/blender/pulls/122167

source/blender/editors/animation/anim_deps.cc

@@ -362,7 +362,10 @@ void ANIM_animdata_update(bAnimContext *ac, ListBase *anim_data)
                   ANIMTYPE_ANIMDATA,
                   ANIMTYPE_NLAACTION,
                   ANIMTYPE_NLATRACK,
-                  ANIMTYPE_NLACURVE))
+                  ANIMTYPE_NLACURVE,
+                  ANIMTYPE_GREASE_PENCIL_LAYER,
+                  ANIMTYPE_GREASE_PENCIL_LAYER_GROUP,
+                  ANIMTYPE_GREASE_PENCIL_DATABLOCK))
     {
       if (ale->update & ANIM_UPDATE_DEPS) {
         ale->update &= ~ANIM_UPDATE_DEPS;