LME v2.1.1

[2.1.1] - Timberrrrr! - 2025-08-19

Summary

Fixes LME installs breaking on Ubuntu 22.04 and Debian 12 by switching Nix installation from apt to the official Nix installer

What's Changed

• Adds a fix to not install nix from apt by @cbaxley in #703

• Install Nix via official script (--daemon) instead of apt; enable nix-daemon, create nix-users, add install_user.
• Add nixpkgs-unstable channel, update channels, and install required tools (podman, docker-compose) with nix-env.
• Debian 12: add curl to base packages to support the installer
• Ansible role now prefers version-specific tasks (e.g., ubuntu-22.04.yml) via with_first_found.
• Minor: update a test Dockerfile base image (burndown chart).

Full Changelog: v2.1.0...v2.1.1