Update standard-query-library.yml (#17141)

Fixed schema error. Was missing "platform".

Author: nonpunctual

docs/01-Using-Fleet/standard-query-library/standard-query-library.yml

@@ -1072,8 +1072,10 @@ apiVersion: v1
 kind: query
 spec:
   name: List osquery table names
+  platform: darwin, linux, windows
   description: List all table names in the schema of the currently installed version of osquery
   query: SELECT DISTINCT name FROM osquery_registry;
   purpose: Informational
   tags: fleet, osquery, table, schema
   contributors: nonpunctual
+---