Add a GitHub Actions workflow for automatic validation of the citation metadata file (`CITATION.CFF`) (#44062)
Hello!
We noticed that your `CITATION.cff` had a small issue and fixed it.
In addition to the fix, this Pull Request automates validation of that
file using the [cffconvert GitHub
Action](https://github.com/marketplace/actions/cffconvert). That way,
it's a little bit easier to be robust against future changes to the
`CITATION.cff` file.
BTW it's perfectly fine if you don't feel like accepting this Pull
Request for whatever reason -- we just thought it might be helpful is
all.
We found your repository using a partially automated workflow; if you
have any questions about that, feel free to create an issue over at
https://github.com/cffbots/filtering/issues/
On behalf of the cffbots team,
@abelsiqueira / @fdiblen / @jspaaks
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Co-authored-by: Max Horn <max@quendi.de>