HPCC-12277 Fix memory leaks in ECLWatch services

Signed-off-by: wangkx <kevin.wang@lexisnexis.com>

esp/services/ws_smc/ws_smcService.cpp

@@ -541,6 +541,7 @@ void CWsSMCEx::readDFUWUs(IEspContext &context, const char* queueName, const cha
 {
     StringAttrArray wulist;
     unsigned running = queuedJobs(queueName, wulist);
+    Owned<IDFUWorkUnitFactory> factory = getDFUWorkUnitFactory();
     ForEachItemIn(i, wulist)
     {
         StringBuffer jname, uname, state, error;
@@ -552,7 +553,7 @@ void CWsSMCEx::readDFUWUs(IEspContext &context, const char* queueName, const cha
 
         try
         {
-            Owned<IConstDFUWorkUnit> dfuwu = getDFUWorkUnitFactory()->openWorkUnit(wuid, false);
+            Owned<IConstDFUWorkUnit> dfuwu = factory->openWorkUnit(wuid, false);
             dfuwu->getUser(uname);
             dfuwu->getJobName(jname);
         }

esp/services/ws_workunits/ws_workunitsHelpers.cpp

@@ -800,7 +800,7 @@ void WsWuInfo::getEventScheduleFlag(IEspECLWorkunit &info)
                 if (!r)
                     continue;
 
-                IWorkflowEvent *wfevent = r->getScheduleEvent();
+                Owned<IWorkflowEvent> wfevent = r->getScheduleEvent();
                 if (!wfevent)
                     continue;