add version guard to new method

Author: mconflitti-pbc

src/posit/connect/client.py

@@ -173,6 +173,7 @@ def __init__(self, *args, **kwargs) -> None:
         self.session = session
         self._ctx = Context(self)
 
+    @requires("2025.01.0-dev")
     def with_user_session_token(self, token: str) -> Client:
         """Create a new Client scoped to the user specified in the user session token.