添加对ERNIE-Speed和ERNIE-Lite模型的支持 (#1821)

* feat: add ERNIE-Speed and ERNIE-Lite

百度的ERNIE-Speed and ERNIE-Lite模型开始免费使用了，故添加了调用地址。可以使用ERNIE-Speed-128K，ERNIE-Speed-8K，ERNIE-Lite-8K来访问

* chore: Modify supported models in config.py

修改了config.py中千帆支持的模型列表，添加了三款免费模型

request_llms/bridge_qianfan.py

@@ -82,6 +82,9 @@ def generate_from_baidu_qianfan(inputs, llm_kwargs, history, system_prompt):
         "ERNIE-Bot":            "https://aip.baidubce.com/rpc/2.0/ai_custom/v1/wenxinworkshop/chat/completions",
         "ERNIE-Bot-turbo":      "https://aip.baidubce.com/rpc/2.0/ai_custom/v1/wenxinworkshop/chat/eb-instant",
         "BLOOMZ-7B":            "https://aip.baidubce.com/rpc/2.0/ai_custom/v1/wenxinworkshop/chat/bloomz_7b1",
+        "ERNIE-Speed-128K":     "https://aip.baidubce.com/rpc/2.0/ai_custom/v1/wenxinworkshop/chat/ernie-speed-128k",
+        "ERNIE-Speed-8K":       "https://aip.baidubce.com/rpc/2.0/ai_custom/v1/wenxinworkshop/chat/ernie_speed",
+        "ERNIE-Lite-8K":        "https://aip.baidubce.com/rpc/2.0/ai_custom/v1/wenxinworkshop/chat/ernie-lite-8k",
 
         "Llama-2-70B-Chat":     "https://aip.baidubce.com/rpc/2.0/ai_custom/v1/wenxinworkshop/chat/llama_2_70b",
         "Llama-2-13B-Chat":     "https://aip.baidubce.com/rpc/2.0/ai_custom/v1/wenxinworkshop/chat/llama_2_13b",
@@ -165,4 +168,4 @@ def predict(inputs, llm_kwargs, plugin_kwargs, chatbot, history=[], system_promp
         tb_str = '```\n' + trimmed_format_exc() + '```'
         chatbot[-1] = (chatbot[-1][0], tb_str)
         yield from update_ui(chatbot=chatbot, history=history, msg="异常") # 刷新界面
-        return
+        return