fix(confirmdialog): fix the missing of the pass-though prop named `mask`

packages/primevue/src/confirmdialog/ConfirmDialog.d.ts

@@ -101,6 +101,10 @@ export interface ConfirmDialogPassThroughOptions {
      * Used to pass attributes to the footer's DOM element.
      */
     footer?: ConfirmDialogPassThroughOptionType;
+    /**
+     * Used to pass attributes to the mask's DOM element.
+     */
+    mask?: ConfirmDialogPassThroughOptionType;
     /**
      * Used to pass attributes to the Button component.
      * @see {@link ButtonPassThroughOptions}