fix(Core/DynamicObject): Fix Death and Decay not ticking while stationary (#24205)

Co-authored-by: blinkysc <37940565+blinkysc@users.noreply.github.com>

src/server/game/Entities/DynamicObject/DynamicObject.cpp

@@ -272,3 +272,11 @@ void DynamicObject::UnbindFromCaster()
     _caster->_UnregisterDynObject(this);
     _caster = nullptr;
 }
+
+bool DynamicObject::IsUpdateNeeded()
+{
+    if (GetByteValue(DYNAMICOBJECT_BYTES, 0) == DYNAMIC_OBJECT_AREA_SPELL)
+        return true;
+
+    return WorldObject::IsUpdateNeeded();
+}