http: fix failing test

Author: ShogunPanda

test/parallel/test-stream-finished.js

@@ -660,7 +660,9 @@ testClosed((opts) => new Writable({ write() {}, ...opts }));
       { method: 'GET', port: this.address().port },
       common.mustCall(function(res) {
         res.resume();
-        server.close();
+        finished(res, common.mustCall(() => {
+          server.close();
+        }));
       })
     ).end();
   });