Fixed ineffectual assignments in tests

[muesli]

Just makes it a bit more obvious which values we want to test for, and which
ones we want to ignore.

[codecov-io]

Codecov Report

Merging #7553 into master will decrease coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #7553      +/-   ##
==========================================
- Coverage   41.25%   41.24%   -0.01%     
==========================================
  Files         469      469              
  Lines       63620    63620              
==========================================
- Hits        26244    26240       -4     
- Misses      33955    33957       +2     
- Partials     3421     3423       +2

Impacted Files	Coverage Δ
modules/process/manager.go	76.81% <0%> (-4.35%)	⬇️
models/gpg_key.go	55.83% <0%> (-0.84%)	⬇️
models/repo_list.go	73.09% <0%> (+1.01%)	⬆️

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