[TD-5733]<CI>add timeout for crash_gen

Jenkinsfile

@@ -223,12 +223,14 @@ pipeline {
           steps {
             pre_test()
             catchError(buildResult: 'SUCCESS', stageResult: 'FAILURE') {
+                timeout(time: 60, unit: 'MINUTES'){
                   sh '''
                   cd ${WKC}/tests/pytest
                   ./crash_gen.sh -a -p -t 4 -s 2000
                   '''
                 }
-
+            }
+            timeout(time: 60, unit: 'MINUTES'){
               sh '''
               cd ${WKC}/tests/pytest
               rm -rf /var/lib/taos/*
@@ -241,6 +243,7 @@ pipeline {
               rm -rf /var/log/taos/*
               ./handle_taosd_val_log.sh
               '''
+            }
             timeout(time: 45, unit: 'MINUTES'){
                 sh '''
                 date