Unless I'm missing something stupid, it looks like it's formatted the same way as everything else:

- regions:
      type: file
      description: GFF3 or GenBank file of pre-annotated regions (optional)
      pattern: "*.{gbff,gff3}"
      ontologies:
        - <http://edamontology.org/format_2206> # Sequence feature table format (text)
  - hmms:
      type: file
      description: HMM database file for custom annotation (optional)
      pattern: "*.hmm"
      ontologies:
        - <http://edamontology.org/format_1370> # HMMER database format

it shoud be

- edam: "<http://edamontology.org/format_2206>" # Sequence feature table format (text)

Oh wtf, why didn't the other entries have this already 😱