refactor playbook to install packages using guix (package manager)

[capsulecorplab]

as an alternative to #11

references

• https://guix.gnu.org/manual/en/html_node/Installation.html

[capsulecorplab]

blocked by an fport_read error https://github.com/LearnTeachCode/ltc-workspace-image/actions/runs/12103100787/job/33744897715#step:5:672