Create a sso account for eelco for uploading releases.

[Mic92]

Looks like the old AWS_ACCESS_KEY_ID / AWS_SECRET_ACCESS_KEY got revoked but we need this for our upload-release.pl script

[Mic92]

Looks like we need to just update the script since it seems that eelco has that.

[mweinelt]

I think this relates to Nix releases, which are now using an OIDC binding instead.