lib: allow Writeable.toWeb() to work on http.Outgoing message

Attempted to fix the issue by watering down the condition being
checked in internal/streams/utils isWritableNodeStream utility

Fixes: nodejs#44188

lib/internal/webstreams/adapters.js

@@ -101,11 +101,17 @@ function newWritableStreamFromStreamWritable(streamWritable) {
   // here because it will return false if streamWritable is a Duplex
   // whose writable option is false. For a Duplex that is not writable,
   // we want it to pass this check but return a closed WritableStream.
-  if (typeof streamWritable?._writableState !== 'object') {
+  const checkIfWritable =
+    streamWritable &&
+    typeof streamWritable?.write === 'function' &&
+    typeof streamWritable?.on === 'function' &&
+    !streamWritable?._readableState;
+  if (!checkIfWritable) {
     throw new ERR_INVALID_ARG_TYPE(
       'streamWritable',
       'stream.Writable',
-      streamWritable);
+      streamWritable
+    );
   }
 
   if (isDestroyed(streamWritable) || !isWritable(streamWritable)) {