Update `HttpPlugin.ts` to fix https://github.com/apache/skywalking/issues/11583 (#121)

diff --git a/src/plugins/HttpPlugin.ts b/src/plugins/HttpPlugin.ts
index 84c80e1..88aa311 100644
--- a/src/plugins/HttpPlugin.ts
+++ b/src/plugins/HttpPlugin.ts
@@ -87,7 +87,7 @@
 
           if (res.statusMessage) span.tag(Tag.httpStatusMsg(res.statusMessage));
 
-          wrapEmit(span, res, false);
+          wrapEmit(span, res, false, 'end');
         };
 
         const responseCB = function (this: any, res: any) {