kernelci.config: fix validate_yaml() for list of dicts

Config entries that are a list of strings can be sorted, but lists of
dicts can't.  Skip the alphabetical order check for those (e.g. the
scheduler configs).

Fixes: 7e936c9 ("kernelci.config: add validate_yaml() method")
Signed-off-by: Guillaume Tucker <[email protected]>

Author: gctucker

kernelci/config/__init__.py

@@ -66,7 +66,10 @@ def validate_yaml(config_paths, entries):
                 if isinstance(value, dict):
                     keys = value.keys()
                 elif isinstance(value, list):
-                    keys = value
+                    keys = (
+                        [] if len(value) and isinstance(value[0], dict)
+                        else value
+                    )
                 else:
                     keys = []
                 err = kernelci.sort_check(keys)