clan-cli: Simplify HostKeyCheck to a Literal instead of an Enum

pkgs/clan-cli/clan_cli/tests/hosts.py

@@ -3,7 +3,6 @@ import pwd
 from pathlib import Path
 
 import pytest
-from clan_cli.ssh.host_key import HostKeyCheck
 from clan_cli.tests.sshd import Sshd
 from clan_lib.ssh.remote import Remote
 
@@ -17,7 +16,7 @@ def hosts(sshd: Sshd) -> list[Remote]:
             port=sshd.port,
             user=login,
             private_key=Path(sshd.key),
-            host_key_check=HostKeyCheck.NONE,
+            host_key_check="none",
             command_prefix="local_test",
         )
     ]