fix(spinner): set spinner as span

when used as a div inside a loading button, it makes the html invalid

packages/components/spinner/src/Spinner.tsx

@@ -20,14 +20,14 @@ export const Spinner = ({
   ...others
 }: PropsWithChildren<SpinnerProps>) => {
   return (
-    <div
+    <span
       role="status"
       data-spark-component="spinner"
       ref={ref}
       className={spinnerStyles({ className, size, intent, isBackgroundVisible })}
       {...others}
     >
       {label && <VisuallyHidden>{label}</VisuallyHidden>}
-    </div>
+    </span>
   )
 }