lint: fix typing issues with updated pyright

[lengau]

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[codecov]

Codecov Report

Merging #58 (99f388a) into main (c9bd220) will increase coverage by 0.03%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #58      +/-   ##
==========================================
+ Coverage   88.01%   88.05%   +0.03%     
==========================================
  Files          13       13              
  Lines         626      628       +2     
  Branches      125      124       -1     
==========================================
+ Hits          551      553       +2     
  Misses         61       61              
  Partials       14       14              

Impacted Files	Coverage Δ
craft_archives/repo/apt_ppa.py	91.30% <100.00%> (ø)
craft_archives/repo/package_repository.py	98.75% <100.00%> (+0.01%)	⬆️
craft_archives/repo/projects.py	100.00% <100.00%> (ø)