fix citest oom by adding test_video_multi_modal_embedding.py and test_conversational_text_to_sql.py to isolated tests

tests/run_config.yaml

@@ -41,6 +41,8 @@ isolated:  # test cases that may require excessive anmount of GPU memory or run
   - test_image_matting.py
   - test_skin_retouching.py
   - test_table_recognition.py
+  - test_conversational_text_to_sql.py
+  - test_video_multi_modal_embedding.py
 
 envs:
   default: # default env, case not in other env will in default, pytorch.