[Fix] Websocket package version issues

Websocket package version issues:

The aaugustin websockets library before 9.1 for Python has an Observable Timing Discrepancy on servers when HTTP Basic Authentication is enabled with basic_auth_protocol_factory(credentials=...). An attacker may be able to guess a password via a timing attack.

Author: uJhin

client/python/requirements.txt

@@ -44,5 +44,5 @@ typing-extensions==3.7.4.3
 urllib3==1.26.4
 webcolors==1.11.1
 webencodings==0.5.1
-websockets==8.1
+websockets==10.1
 wrapt==1.12.1

client/python/upbit/pkginfo.py

@@ -29,7 +29,7 @@ def _get_versions(package_name):
 PACKAGE_NAME     = 'upbit-client'
 
 OPEN_API_VERSION = '1.2.2'
-CURRENT_VERSION  = OPEN_API_VERSION+'.0'
+CURRENT_VERSION  = OPEN_API_VERSION+'.1'
 
 RELEASED_VERSION = _get_versions(PACKAGE_NAME)
 LATEST_VERSION   = RELEASED_VERSION[0]

client/python/upbit/websocket.py

@@ -172,12 +172,12 @@ def generate_payload(
 
         return json.dumps(payload)
 
-    async def __aenter__(self) -> websockets.client.WebSocketClientProtocol:
+    async def __aenter__(self):
         return await self.Connection.__aenter__()
 
-    async def __aexit__(self, exc_type, exc_value, traceback) -> None:
+    async def __aexit__(self, exc_type, exc_value, traceback):
         await self.Connection.__aexit__(exc_type, exc_value, traceback)
-    
+
     def __str__(self):
         return self.__repr__()