Starting with release 19.43.14583 all packages are mirrored on SourceForge as older packages are automatically deleted on launchpad and copr.
Docker images are provided in intel-opencl repository.
Example for Fedora* 31
docker run -it --device /dev/dri:/dev/dri --rm docker.io/intelopencl/intel-opencl:fedora-31-copr clinfo