types(ModalTopActions): fix type of close event for top actions

the only case is mouse event when clicking the "x" close button

packages/core/src/components/ModalNew/ModalTopActions/ModalTopActions.types.ts

@@ -13,5 +13,5 @@ export interface ModalTopActionsProps {
   renderAction?: (color?: ModalTopActionsButtonColor) => React.ReactElement<typeof MenuButton | typeof IconButton>;
   color?: ModalTopActionsColor;
   closeButtonAriaLabel?: string;
-  onClose?: React.MouseEventHandler<HTMLDivElement>;
+  onClose?: (e: React.MouseEvent<HTMLButtonElement>) => void;
 }