Create custom Linux Runner Profiles per account

You can now create per-account Runner Profiles that package a vCPU and RAM shape behind a name, then reference them in GitHub Actions workflows as runs-on: tuist-<name>. Updating a profile’s resources applies to every workflow that uses it, without editing workflow files. Linux runners are hosted on Hetzner Robot bare-metal hosts inside Kata QEMU microVMs for kernel-level tenant isolation, with queue-driven autoscaling. The default Linux profile is now 2 vCPU / 8 GB, matching GitHub’s private ubuntu-latest and improving host density while keeping the 8 GB memory floor.