Cannot extract metadata in CI environment

[Aidajafarbigloo]

Hello,

Although every step in the guide for using HERMES in a CI environment (https://docs.software-metadata.pub/en/latest/tutorials/automated-publication-with-ci.html) has been followed, no metadata is being extracted into the .hermes/curate directory in hermes.json. The branch is being created, but no metadata is displayed there, the only output is:

Is there any step missing? Thank you for your guidance on this issue.

[led02]

Investigation showed that the CITATION.cff was not valid and hence the data was not harvested.

This especially drew a spot light on the hermes output already documented in #138, #204, #238