Failed to run the saivs_client_server thrift tests on the Bullseye client/server docker images.

[IGordynskyi]

Steps to reproduce:

1. Build the client and server for the thrift type;
2. Run the test_l2_basic
   Link to steps: https://github.com/opencomputeproject/SAI-Challenger/blob/main/docs/client_server_mode.md

Test results:

$ ./exec.sh -i client -s thrift pytest --testbed=saivs_client_server -v -k "test_l2_basic"
=============================================================================== short test summary info ================================================================================
ERROR test_l2_basic.py::test_l2_access_to_access_vlan - AssertionError: Redis server has not started yet...                      
ERROR test_l2_basic.py::test_l2_trunk_to_trunk_vlan - AssertionError: Redis server has not started yet...                  
ERROR test_l2_basic.py::test_l2_access_to_trunk_vlan - AssertionError: Redis server has not started yet...    
ERROR test_l2_basic.py::test_l2_trunk_to_access_vlan - AssertionError: Redis server has not started yet...                                    
ERROR test_l2_basic.py::test_l2_flood - AssertionError: Redis server has not started yet...                                                                                             
ERROR test_l2_basic.py::test_l2_lag - AssertionError: Redis server has not started yet...
ERROR test_l2_basic.py::test_l2_lag_hash_seed - AssertionError: Redis server has not started yet...
ERROR test_l2_basic.py::test_l2_vlan_bcast_ucast - AssertionError: Redis server has not started yet...
ERROR test_l2_basic.py::test_l2_mtu - AssertionError: Redis server has not started yet...
ERROR test_l2_basic.py::test_fdb_bulk_create - AssertionError: Redis server has not started yet...
ERROR test_l2_basic.py::test_fdb_bulk_remove - AssertionError: Redis server has not started yet...
ERROR test_l2_basic.py::test_l2_mac_move_1 - AssertionError: Redis server has not started yet...
ERROR test_l2_basic_dd.py::test_l2_trunk_to_trunk_vlan_dd - AssertionError: Redis server has not started yet...
=================================================================== 1360 deselected, 2 warnings, 13 errors in 10.52s ===================================================================

...

2024-11-28T15:09:04.483992+00:00 c946f8c7e241 supervisord: saiserver insert: SAI_VS_INTERFACE_LANE_MAP_FILE:/usr/share/sonic/hwsku/lanemap.ini
2024-11-28T15:09:04.483994+00:00 c946f8c7e241 supervisord: saiserver Failed to initialize SAI api: -15
2024-11-28T15:09:07.510412+00:00 c946f8c7e241 supervisord: saiserver port map file: /usr/share/sonic/hwsku/port_config.ini
2024-11-28T15:09:07.510418+00:00 c946f8c7e241 supervisord: saiserver profile map file: /usr/share/sonic/hwsku/sai.profile
2024-11-28T15:09:07.510419+00:00 c946f8c7e241 supervisord: saiserver insert: SAI_WARM_BOOT_READ_FILE:/var/cache/sai_warmboot.bin
2024-11-28T15:09:07.510420+00:00 c946f8c7e241 supervisord: saiserver insert: SAI_WARM_BOOT_WRITE_FILE:/var/cache/sai_warmboot.bin
2024-11-28T15:09:07.510422+00:00 c946f8c7e241 supervisord: saiserver insert: SAI_VS_SWITCH_TYPE:SAI_VS_SWITCH_TYPE_BCM56850
2024-11-28T15:09:07.510423+00:00 c946f8c7e241 supervisord: saiserver insert: SAI_VS_HOSTIF_USE_TAP_DEVICE:true
2024-11-28T15:09:07.510425+00:00 c946f8c7e241 supervisord: saiserver insert: SAI_VS_INTERFACE_LANE_MAP_FILE:/usr/share/sonic/hwsku/lanemap.ini
2024-11-28T15:09:07.510427+00:00 c946f8c7e241 supervisord: saiserver Failed to initialize SAI api: -15