Since mesa is used in drm-ci, the artifacts in drm-ci jobs have the 'mesa' prefix. This change replaces the hardcoded 'mesa' prefix in the artifacts name with the CI_PROJECT_NAME variable. Signed-off-by: Vignesh Raman <vignesh.raman@collabora.com> Reviewed-by: Eric Engestrom <None> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33154>