feat(parser): extract authors from CFF files

[rmfranken]

This branch makes it possible to retrieve "author" objects from a CFF file and write them to turtle. It slightly refactored the generic parse function to output a graph structure (triples) instead of properties and values ("doubles?").

Additionally, minor fixes in poetry dependencies.

[rmfranken]

@cmdoret I'm especially interested in the tests - how do you generally decide how "deep" to test? Looking at the other tests I saw the level detail was not super high, so I tried to match that in my test- but happy to hear if there is a better way of deciding that.

Also, I think the container registry action that is failing seems to be related to a version number? Is that something I should add to my PR somehow? It seems related to the version of git, rather than any code I added :/

[cmdoret]

Nice work! I have a bunch of suggestions to improve code readability.

About tests: I would just add a test for behaviour on a cff with broken orcid (not a uri) and authors without doi. And making sure they don't appear in the output.

Note: you don't need to create cff files for tests, since the functions take bytes, you can write plain yaml in the test, e.g.:

data = b"""
<yaml-content>
"""
get_cff_authors(data)

I'm not sure there's an absolute rule about test depths, but in general, it's good to cover the obvious edge cases, and have them run on important code paths.

[cmdoret]

About the container building issue: it seems that the newer versions of pydriller need a more recent git.

Changing the base-layer of our docker image from python:3.10-slim-bullseye to python:3.13-slim-bookworm should do it, it seems the latter comes with git 21.39.5

[rmfranken]

Since I was making a orcid matcher, I thought I would also move the doi matching logic to utils. Does that make sense?

[cmdoret]

Nice, this is starting to look really good! I have a few suggestions to improve things but most of them are optional.

The only really important one is the orcid url check in CffParser.

[cmdoret]

note: bumped the dockerfile base layer so that ci succeeds

[cmdoret]

LGTM 🚀 well done!