GatewayDiscordClient doesn't inherit http client of ReactorResources from DiscordClient

[RazeSoldier]

To Reproduce:

String token = "xxx";
ReactorResource resources = ReactorResources.builder().httpClient(...).build(); // customize HTTP client (e.g. proxy)
DiscordClient client = DiscordClientBuilder.create(token).setReactorResources(resources).build();
client.withGateway(xxx); // listen events

Expected Behavior:
GatewayDiscordClient defaults to using the parent ReactorResources inherited from DiscordClient.

Actual Behavior:
GatewayBootstrap will rebuild HTTP client: https://github.com/Discord4J/Discord4J/blob/dfcc9fb/core/src/main/java/discord4j/core/shard/GatewayBootstrap.java#L884-L892.
This will lost custom configuration.

Version:
3.2.3

Other:
In this case, I have to provide my GatewayReactorResources to GatewayBootstrap:

gatewayBootstrap.setGatewayReactorResources(reactorResources -> GatewayReactorResources.builder(client.getCoreResources().getReactorResources()).build())

to avoid the rebuild.