🆙 Add query string to request logger (#16)

Author: gabriel-franzoni-pier

lib/pier_logging/request_logger.rb

@@ -56,6 +56,7 @@ def log(args)
         request: {
           headers: request_headers,
           href: request.url,
+          query_string: request.query_string,
           body: parse_body(request.body)
         },
         response: {