https://github.com/DataDog/opentelemetry-mapping-go/blob/5432be02915e24c7e8a294cd4a17877016f9b73d/pkg/otlp/attributes/attributes.go#L53 This mapping sends `cloud.availability_zone` as the datadog tag `zone`. But the docs it links to, https://www.datadoghq.com/blog/tagging-best-practices/, say that the tag name should be `availability-zone`. One of them is presumably wrong. The host inventory uses `availability-zone` so unless the metrics backend on DD uses `zone` instead for some reason, this code might be mistaken/outdated.