fix(sampling): Forward compatibility for config

[jjbayer]

Add missing variants to enums in sampling config for forward compatibility.

#skip-changelog

[iker-barriocanal]

I'm not sure if I like this, but I don't have better suggestions.

[jan-auer]

We could alternatively log an error for during project state deserialization (since that's where the error really happens) and fail silently here instead.

This behavior is fine since it's the same as if sampling were not implemented. That matches behavior in other cases, where Relay ignores all configuration it doesn't know about.

[iker-barriocanal]

We could alternatively log an error for during project state deserialization (since that's where the error really happens)

I'd rather log the error during deserialization.

[jjbayer]

I tried to be consistent with check_unsupported_rules here, but maybe it's a bad pattern anyway.

relay/relay-server/src/utils/dynamic_sampling.rs

Lines 33 to 47 in ca27595

	fn check_unsupported_rules(
	processing_enabled: bool,
	sampling_config: &SamplingConfig,
	) -> Result<(), SamplingResult> {
	// when we have unsupported rules disable sampling for non processing relays
	if sampling_config.has_unsupported_rules() {
	if !processing_enabled {
	return Err(SamplingResult::Keep);
	} else {
	relay_log::error!("found unsupported rules even as processing relay");
	}
	}
	Ok(())
	}

[jjbayer]

As discussed offline, going to merge as-is.

[jan-auer]

nit: Introduce a supported method on rules types, too?

[jan-auer]

We could alternatively log an error for during project state deserialization (since that's where the error really happens) and fail silently here instead.

This behavior is fine since it's the same as if sampling were not implemented. That matches behavior in other cases, where Relay ignores all configuration it doesn't know about.