* [x] **I have checked that this feature has not yet been suggested by someone else.** Add new closed arrow with dots to diagram arrow styles <img width="574" alt="Capture d’écran 2023-06-29 à 15 47 46" src="https://github.com/eclipse-sirius/sirius-components/assets/717752/1c207b6c-22dc-4053-b7d2-a9f4eb503571">