According to SOL 013 (https://www.etsi.org/deliver/etsi_gs/NFV-SOL/001_099/013/02.06.01_60/gs_nfv-sol013v020601p.pdf) the endpoint should have an underscore, not a hyphen: `/api-versions` should `/api_versions` replica of: https://forge.etsi.org/rep/nfv/SOL005/issues/3