Install pantalaimon with `--no-deps` so that we can upgrade matrix-nio
for compatibility with Python 3.12, even though pantalaimon specifies
`<0.21`. This requires listing all packages to be installed, gathered
via `pip freeze`.

Mjolnir does not support Node 20.

The bridge dropped support for Node 18.

Doesn't make sense to split these; the notifications are unnecessary.

ansible-lint 6.19.0 started complaining about this:

   schema[tasks]: 'become_method' must be one of the currently available
   values: ansible.builtin.runas, ansible.builtin.su,
           ansible.builtin.sudo, ansible.netcommon.enable,
           community.general.doas, community.general.dzdo,
           community.general.ksu, community.general.machinectl,
           community.general.pbrun, community.general.pfexec,
           community.general.pmrun, community.general.sesu,
           community.general.sudosu, containers.podman.podman_unshare

And fix optional features.