Person schema for merge_packages #21307 (#21703)

* Person schema for merge_packages #21307

* empty list

* skip empty persons

* hound

* test schema

* ensure_none

* remove any test changes

* remove_falsy validator

* nice!

* coretests

script/inspect_schemas.py

@@ -48,7 +48,7 @@ def main():
 
         schema_type, schema = _identify_config_schema(module)
 
-        add_msg("CONFIG_SCHEMA " + schema_type, module_name + ' ' +
+        add_msg("CONFIG_SCHEMA " + str(schema_type), module_name + ' ' +
                 color('cyan', str(schema)[:60]))
 
     for key in sorted(msg):