Pass aria-labelledby to TextArea component (#2149)

Author: spark33

.changeset/famous-olives-suffer.md

@@ -0,0 +1,5 @@
+---
+'@leafygreen-ui/text-area': patch
+---
+
+aria-labelledby is now correctly passed to the textarea

packages/text-area/src/TextArea/TextArea.tsx

@@ -129,6 +129,7 @@ export const TextArea: TextArea = forwardRef<
         )}
         <textarea
           {...rest}
+          aria-labelledby={ariaLabelledby}
           ref={forwardedRef}
           title={label != null ? label : undefined}
           id={id}