fix(ext/node): read(0) before destroying http2stream (#23505)

This patch enables gRPC hello world client example to work.

Towards #23246 #3326

ext/node/polyfills/http2.ts

@@ -1019,6 +1019,7 @@ export class ClientHttp2Stream extends Duplex {
         core.tryClose(this[kDenoResponse].bodyRid);
         this.push(null);
         debugHttp2(">>> read null chunk");
+        this.read(0);
         this[kMaybeDestroy]();
         return;
       }