Fix GOBY_CCP_API artifact. The release is compressed in a single archive on chagall while the artifact was expecting to find the release in a dedicated folder.
Fix GOBY_CCP_API artifact. The release is compressed in a single archive on chagall while the artifact was expecting to find the release in a dedicated folder.

CampagneLaboratory/gobyweb2-plugins,CampagneLaboratory/gobyweb2-plugins,CampagneLaboratory/gobyweb2-plugins,CampagneLaboratory/gobyweb2-plugins