ci: Install ansible so ansible-lint can resolve the modules
ansible-lint no longer depends on ansible[1][2] which causes it to fail with: syntax-check: couldn't resolve module/action 'pacman', as the modules is part of ansible and not ansible-base.
[1] https://bugs.archlinux.org/task/69920 [2] https://github.com/archlinux/svntogit-community/commit/a3ccb42b8dc104a4616a64fac4a1f6dd44ffedca