Add tags demo in test case

Signed-off-by: del-zhenwu <zhenxiang.li@zilliz.com>

build/ci/jenkins/Jenkinsfile

@@ -72,7 +72,7 @@ pipeline {
                 axes {
                     axis {
                         name 'REGRESSION_SERVICE_NAME'
-                        values 'regression'
+                        values 'regression, regression_0331'
                     }
                 }
                 environment {

tests/python_test/test_connect.py

@@ -40,6 +40,7 @@ class TestConnect:
         with pytest.raises(Exception) as e:
             connect.close()
 
+    @pytest.mark.tags("0331")
     def test_connect_correct_ip_port(self, args):
         '''
         target: test connect with correct ip and port value