Merge pull request #5882 from taosdata/fix/TD-3883

[TD-3883]<fix>: [http/clear parser] clear parser when decode finished to fix race with next request

src/plugins/http/src/httpHandle.c

@@ -50,6 +50,7 @@ bool httpProcessData(HttpContext* pContext) {
        */
       // httpCloseContextByApp(pContext);
     } else {
+      httpClearParser(pContext->parser);
       httpProcessRequest(pContext);
     }
   }