The manual suggests you use gdebi to install the .deb package and its dependencies in one go (instead of using dpkg -i which results in errors that you need to fix by a run of apt-get install -f). See https://checkmk.com/cms_install_packages_debian.html
On recent Debian releases, you can also use apt install /path/to/package.deb to install a local package while still automatically retrieving its dependencies from any configured repository.
I’m not sure if it will help in this case, since I haven’t used Checkmk on arm and can’t comment on the quality of this (inofficial?) package. But surely worth a try 