docs(Server.cmd): Fix typo

Author: tony

src/libtmux/server.py

@@ -174,7 +174,7 @@ def raise_if_dead(self) -> None:
     # Command
     #
     def cmd(self, *args: t.Any, **kwargs: t.Any) -> tmux_cmd:
-        """Execute tmux command, rsepective of socket name and file, return output.
+        """Execute tmux command respective of socket name and file, return output.
 
         Examples
         --------