Bootstrap: Install required dep qemu-tools

[asdil12]

Ticket: https://progress.opensuse.org/issues/57014

[codecov]

Codecov Report

Merging #2809 into master will decrease coverage by 0.1%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2809      +/-   ##
==========================================
- Coverage   92.22%   92.12%   -0.11%     
==========================================
  Files         190      190              
  Lines       11810    11810              
==========================================
- Hits        10892    10880      -12     
- Misses        918      930      +12

Impacted Files	Coverage Δ
lib/OpenQA/Scheduler/Model/Jobs.pm	88.66% <0%> (-2.84%)	⬇️
lib/OpenQA/Worker/WebUIConnection.pm	85.33% <0%> (-2.23%)	⬇️
lib/OpenQA/WebAPI/Controller/API/V1/Job.pm	87.92% <0%> (-2.17%)	⬇️
lib/OpenQA/Worker/CommandHandler.pm	78.63% <0%> (-1.71%)	⬇️
lib/OpenQA/Worker/Job.pm	72.43% <0%> (+0.32%)	⬆️
lib/OpenQA/Worker/Settings.pm	98.11% <0%> (+13.2%)	⬆️

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[okurz]

Just to make this clear: As we install qemu I think it also makes sense to pull in qemu-tools. That we have this manually maintained list of packages in bootstrap itself is questionable in general. IMHO it is more likely that "openqa-bootstrap" is used in a setup when wants to run a local worker and hence qemu but still not necessarily what the user wants.