Description:

Describe the desired behavior, what scenario it enables and how it
would be used.

I would like to use query parameters as a valid client selector https://gateway.envoyproxy.io/docs/api/extension_types/#ratelimitselectcondition
to ratelimit requests

Recently added in envoy proxy https://www.envoyproxy.io/docs/envoy/latest/api-v3/config/route/v3/route_components.proto#config-route-v3-ratelimit-action

[optional Relevant Links:]

Any extra documentation required to understand the issue.