Install Sonobuoy in Dockerfile

[gerbsen]

Add Sonobuoy installation to Dockerfile with architecture support.

[mbuechse]

To be frank, I do hate this Dockerfile. It tries to install all dependencies, that is, for IaaS and KaaS alike, regardless of the eventual purpose. Would it be possible to supply sonobuoy via a mount? Otherwise, maybe the code can at least be shortened. With Ansible, we only need these lines (with curl):

    - name: Install Sonobuoy
      ansible.builtin.shell:
        curl -L {{ sonobuoy_tar_gz_url | trim | quote }} | tar xz sonobuoy
      args:
        chdir: "{{ ansible_user_dir}}/.local/bin/"
        creates: sonobuoy
      when: kaas | bool

Apparently, when curl can be used, there is no need to have three separate commands for downloading, extracting and removing a temporary file, and even the chmod seems to be unnecessary? Not sure if curl is available on a python-3.10 image (or whatever is used here), but I think it's worth a try.