Go to the releases section of the repo https://github.com/kube-burner/kube-burner/releases and download the latest available at the moment for x84_64 (more archs are also available)
curl -L https://github.com/kube-burner/kube-burner/releases/download/v1.9.4/kube-burner-V1.9.4-linux-amd.tar.gz | tar xz kube-burner
Binaries are available at https://github.com/kube-burner/kube-burner-ocp/releases. Download latest one with
curl -l https://github.com/kube-burner/kube-burner-ocp/releases/download/v1.2.3/kube-burner-ocp-V1.2.3-linux-x86_64.tar.gz | tar xz kube-burner-ocp