fix: fix expired connections still showed issue

source/dnode/mnode/impl/src/mndProfile.c

@@ -687,6 +687,7 @@ static int32_t mndRetrieveConns(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBl
   int32_t   numOfRows = 0;
   int32_t   cols = 0;
   SConnObj *pConn = NULL;
+  int32_t   keepTime = tsShellActivityTimer * 3;
 
   if (pShow->pIter == NULL) {
     SProfileMgmt *pMgmt = &pMnode->profileMgmt;
@@ -700,6 +701,10 @@ static int32_t mndRetrieveConns(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBl
       break;
     }
 
+    if ((taosGetTimestampMs() - pConn->lastAccessTimeMs) > (keepTime * 1000)) {
+      continue;
+    }
+
     cols = 0;
 
     SColumnInfoData *pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);