don't add user to a secret if they already can access the secret

If the user is part of a group we don't need to add them explicitly

pkgs/clan-cli/tests/conftest.py

@@ -3,4 +3,4 @@ import sys
 
 sys.path.append(os.path.join(os.path.dirname(__file__), "helpers"))
 
-pytest_plugins = ["temporary_dir", "clan_flake", "root"]
+pytest_plugins = ["temporary_dir", "clan_flake", "root", "test_keys"]