Create-Release workflow should use the initiating user's credentials so that releases aren't authored by the github actions bot

[JonnyOThan]

This hasn't been a big deal, except for mods that are only hosted on github and don't have authors explicitly listed. The bot gets added to CKAN's metadata: KSP-CKAN/CKAN#4317

[HebaruSan]

That CKAN issue has been fixed, but it would still be nice to have a real user associated with releases.