exporter errored with
ERRO[0036] Failed to collect metric for exporter: nova, error: failed to collect metric: security_groups, error: Resource not found: [GET https://my.domain.cloud:8774/v2.1/os-security-groups], error message: {"itemNotFound": {"code": 404, "message": "The resource could not be found."}} source="exporter.go:123"
nova droped '/os-security-group*' since 2.36 api microversion
https://docs.openstack.org/nova/wallaby/reference/api-microversion-history.html#id33

maybe openstack exporter should drop the metric too

nova: wallaby
openstack-exporter: 1.4.0, master