Exporter does not work with Customer Metadata Boundary set to EU

[N0zz]

Cloudflare has different data sets available for differnt locations in CMB (EU and US):
https://developers.cloudflare.com/data-localization/metadata-boundary/graphql-datasets/

While exporting is working fine, when we set CMB to global (and US probably too), it stops working when we set to EU, because of limited number of metrics available.

level=error msg="graphql: this dataset is not available in your account's configured region"

Would be nice to be able to limit metrics gathered by exporter only to those available in your selected CMB region, either automatically or by definition from config/env (e.g. CF_CMB_REGION).

I've tried to utilise metrics_denylist, but seems like exporter fetches all the metrics any way, and only filter them after.