stream: fix typo in adapters.js (nodejs#45515)

`isReadableNodestream` -> `isReadableNodeStream`

PR-URL: nodejs#45515
Reviewed-By: Daeyeon Jeong <daeyeon.dev@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>

Author: cola119

lib/internal/webstreams/adapters.js

@@ -559,7 +559,7 @@ function newStreamReadableFromReadableStream(readableStream, options = kEmptyObj
  */
 function newReadableWritablePairFromDuplex(duplex) {
   // Not using the internal/streams/utils isWritableNodeStream and
-  // isReadableNodestream utilities here because they will return false
+  // isReadableNodeStream utilities here because they will return false
   // if the duplex was created with writable or readable options set to
   // false. Instead, we'll check the readable and writable state after
   // and return closed WritableStream or closed ReadableStream as