Fix #128805: Missing Depsgraph Update when removing FCurve modifiers

The problem was that when removing FCurve modifiers via the python API
the Depsgraph wasn't notified.
Fixed by tagging the owner ID of the fcurve modifier for an update.

Pull Request: https://projects.blender.org/blender/blender/pulls/128984

source/blender/makesrna/intern/rna_fcurve.cc

@@ -773,6 +773,7 @@ static void rna_FCurve_modifiers_remove(FCurve *fcu, ReportList *reports, Pointe
   }
 
   remove_fmodifier(&fcu->modifiers, fcm);
+  DEG_id_tag_update(fcm_ptr->owner_id, ID_RECALC_ANIMATION);
   RNA_POINTER_INVALIDATE(fcm_ptr);
 }