Fix lint

ColdHeat · ColdHeat · commit 89b2cf5f77ab · 2025-09-03T18:05:03.000-04:00
diff --git a/ctfcli/cli/challenges.py b/ctfcli/cli/challenges.py
@@ -578,7 +578,7 @@ def install(
         if isinstance(ignore, str):
             ignore = (ignore,)
 
-        config = Config()
+        _config = Config()
         remote_challenges = Challenge.load_installed_challenges()
 
         failed_installs = []
