An update to vmtest

[hugelgupf]

vmtest has gotten some API overhauls. Sorry for the churn. Trying to improve things :)

One functional difference is that virtio-rng is not included by default anymore. That'll allow us to test dhclient behavior when rng is not there / broken (no hangs!)

We're also starting to use https://github.com/u-root/mkuimage here instead of pkg/u-root.

[codecov]

Codecov Report

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (59b256e) 78.22% compared to head (67b2ddb) 77.97%.

Files	Patch %	Lines
vendor/github.com/hugelgupf/vmtest/guest/skip.go	0.00%	3 Missing ⚠️
...or/github.com/hugelgupf/vmtest/guest/kcov_linux.go	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2918      +/-   ##
==========================================
- Coverage   78.22%   77.97%   -0.25%     
==========================================
  Files         421      430       +9     
  Lines       42893    43153     +260     
==========================================
+ Hits        33552    33649      +97     
- Misses       9341     9504     +163     

Flag	Coverage Δ
.-amd64	67.87% <ø> (ø)
cmds/...-amd64	70.48% <55.55%> (-0.93%)	⬇️
integration/generic-tests/...-amd64	20.41% <42.85%> (-0.11%)	⬇️
integration/generic-tests/...-arm	11.74% <42.85%> (+0.04%)	⬆️
integration/generic-tests/...-arm64	23.74% <42.85%> (-0.24%)	⬇️
integration/gotests/...-amd64	74.47% <55.55%> (-0.22%)	⬇️
integration/gotests/...-arm	75.88% <55.55%> (-0.24%)	⬇️
integration/gotests/...-arm64	75.70% <55.55%> (-0.24%)	⬇️
pkg/...-amd64	76.36% <55.55%> (-0.30%)	⬇️

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[hugelgupf]

Ok, interestingly we are now also collecting integration test coverage from some small part of vmtest in vendor, but I'll fix that later...