tests: update test environments for coverage

[codecov[bot]]

Codecov Report

Merging #19 (a88076a) into main (eb08c10) will decrease coverage by 0.27%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #19      +/-   ##
==========================================
- Coverage   78.65%   78.39%   -0.27%     
==========================================
  Files          11       11              
  Lines         492      486       -6     
  Branches      111      109       -2     
==========================================
- Hits          387      381       -6     
  Misses         75       75              
  Partials       30       30              

Impacted Files	Coverage Δ
craft_archives/__init__.py	100.00% <ø> (ø)
craft_archives/repo/apt_key_manager.py	97.26% <100.00%> (ø)
craft_archives/repo/apt_ppa.py	91.30% <100.00%> (ø)

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