Merge pull request #5092 from taosdata/hjxilinx-patch-2

[TD-2885]<fix>: fix memory leak.

src/cq/src/cqMain.c

@@ -227,6 +227,7 @@ void cqClose(void *handle) {
     
     taosRemoveRef(cqObjRef, rid);
   }
+
   freeSCqContext(pContext);
 }