fix: import add operator in client

bec_widgets/cli/client.py

@@ -7,6 +7,7 @@ import enum
 import inspect
 import traceback
 from functools import reduce
+from operator import add
 from typing import Literal, Optional
 
 from bec_lib.logger import bec_logger

bec_widgets/cli/generate_cli.py

@@ -41,6 +41,7 @@ class ClientGenerator:
 import inspect
 import traceback
 from functools import reduce
+from operator import add
 from typing import Literal, Optional
 """
             if self._base