[BUG] Formula not compatible with Debian 11

[daks]

Your setup

Formula commit hash / release tag

master / e7f31e1

Versions reports (master & minion)

3004.1 from Kitchen setup

Pillar / config used

Those from kitchen

---

Bug details

Describe the bug

packages qemu-kvm and virt-top are not installable.

Steps to reproduce the bug

./bin/kitchen converge default-debian-11-3004-1-py3

[...]
                ID: libvirt-qemu-install-pkg-installed
           Function: pkg.installed
               Name: qemu-kvm
             Result: False
            Comment: The following packages failed to install/update: qemu-kvm
            Started: 16:00:27.469081
           Duration: 1887.718 ms
            Changes:   
[...]
                 ID: libvirt-extra-install-pkg-installed
           Function: pkg.installed
             Result: False
            Comment: Problem encountered installing package(s). Additional info follows:
              
              errors:
                  - Running scope as unit: run-ra546c40648ec45c3b3ae236b7924c792.scope
                    E: Unable to locate package virt-top
            Started: 16:00:29.357027
           Duration: 617.833 ms
            Changes:   
       
       Summary for local
       ------------
       Succeeded: 7
       Failed:    2

Expected behaviour

No errors

Attempts to fix the bug

none for now

Additional context