Manage ragflow-sdk with poetry (#3115)

### What problem does this PR solve?

Manage ragflow-sdk with poetry
### Type of change

- [x] Refactoring

sdk/python/ragflow_sdk/modules/chunk.py

@@ -0,0 +1,27 @@
+from .base import Base
+
+
+class Chunk(Base):
+    def __init__(self, rag, res_dict):
+        self.id = ""
+        self.content = ""
+        self.important_keywords = []
+        self.create_time = ""
+        self.create_timestamp = 0.0
+        self.dataset_id = None
+        self.document_name = ""
+        self.document_id = ""
+        self.available = True
+        for k in list(res_dict.keys()):
+            if k not in self.__dict__:
+                res_dict.pop(k)
+        super().__init__(rag, res_dict)
+
+
+    def update(self,update_message:dict):
+        res = self.put(f"/datasets/{self.dataset_id}/documents/{self.document_id}/chunks/{self.id}",update_message)
+        res = res.json()
+        if res.get("code") != 0 :
+            raise Exception(res["message"])
+
+