I have a research software on GitHub, using an MIT license. I need to include an additional package/library, which is also MIT-licensed, to my software for a new feature to work properly. I do not know the author of that package personally, I just found it online (also on GitHub).
My question now: If I publish my research software in the near future to a platform like Zenodo or something else where I get a DOI, would I include the author of that additional package as a co-author?
My initial guess was no, but instead cite his package/library and thus include it in a list of references. But maybe the research software experts here have a different, more elaborated view on this.