fix(query): resources leaks in qExecutor.c

src/query/src/qExecutor.c

@@ -7770,6 +7770,7 @@ SOperatorInfo* createTimeIntervalOperatorInfo(SQueryRuntimeEnv* pRuntimeEnv, SOp
   initResultRowInfo(&pInfo->resultRowInfo, 8, TSDB_DATA_TYPE_INT);
 
   if (pInfo->pRes == NULL || pInfo->pCtx == NULL || pInfo->resultRowInfo.pResult == NULL) {
+    free(pOperator);
     goto _clean;
   }