[Cherry-Pick] Fix ernie4_5_vl_processor.py and qwen_vl_processor.py can not disable thinking (#4762) (#4798)

* [Feature] add a new reasoning parser (#4571)

* add new reasoning_parser initial commit

* add parser file content

* add register

* ernie_test_reasoning_parser

* support <tool_call> token and add tool_parser

* add and fix unit tests

* modify reasoning_parser

* modify reasoning parser and tool parser

* modify unit tests

* modify reasoning_parser and tool_parser

* modify unit tests

* fix tool_parser

* modify the logic of reasoning_parser and tool_parser

* add and modify unit tests

* standardize code style

* simplify reasoning_parser and tool_parser

* modify unit test

* [BugFix] Fix finish reason in _create_chat_completion_choice  (#4582)

* fix n_param _create_chat_completion_choicel

* fix unit test

* fix final_res

* modify unit tests

* [BugFix] fix offline llm chat "enable_thinking" is always "False" (#4686)

* fix enable_thinking

* recover ernie4_5_vl_processor

* [BugFix] Fix ernie4_5_vl_processor.py and qwen_vl_processor.py can not disable thinking (#4762)

* fix ernie4_5_vl_processor.py and qwen_vl_processor.py

* add unit test

fastdeploy/input/qwen_vl_processor/qwen_vl_processor.py

@@ -237,7 +237,7 @@ class QwenVLProcessor(TextProcessor):
             if chat_template_kwargs:
                 if isinstance(chat_template_kwargs, dict):
                     for k, v in chat_template_kwargs.items():
-                        if k not in request:
+                        if k not in request or request[k] is None:
                             request[k] = v
                 else:
                     raise ValueError("Invalid input: chat_template_kwargs must be a dict")