[Layout] Box aria roles (#7956)

### WHY are these changes introduced?

Supports #7952

### WHAT is this pull request doing?

Add `listbox` and `combobox` aria roles on `Box`

Author: aveline

.changeset/sixty-squids-promise.md

@@ -0,0 +1,5 @@
+---
+'@shopify/polaris': minor
+---
+
+Updated `Box` allowable aria roles

polaris-react/src/components/Box/Box.tsx

@@ -151,7 +151,10 @@ export interface BoxProps extends React.AriaAttributes {
    */
   paddingInlineEnd?: Spacing;
   /** Aria role */
-  role?: Extract<React.AriaRole, 'status' | 'presentation' | 'menu'>;
+  role?: Extract<
+    React.AriaRole,
+    'status' | 'presentation' | 'menu' | 'listbox' | 'combobox'
+  >;
   /** Shadow on box */
   shadow?: DepthShadowAlias;
   /** Set tab order */