fix: removed readonly handler from getmenuprops

packages/react/src/components/ComboBox/ComboBox.tsx

@@ -588,9 +588,9 @@
         }
         if (readOnly) {
           // Prevent the list from opening if readOnly is true
           event.preventDownshiftDefault = true;
           event?.persist?.();
           return;
         }
 
         if (event.target === textInput.current && isOpen) {
@@ -891,13 +891,6 @@
                       toggleMenu();
                     }
                   }
-                  if (readOnly) {
-                    // Prevent default behavior for all keys except Tab when readOnly
-                    if (event.key !== 'Tab') {
-                      event.preventDefault();
-                    }
-                    return;
-                  }
                 },
               })}
               {...rest}