Fix pyright errors

[janjagusch]

No description provided.

[codecov-commenter]

Codecov Report

Patch coverage: 50.00% and project coverage change: -1.02 ⚠️

Comparison is base (69acce5) 82.37% compared to head (7c362e5) 81.35%.

📣 This organization is not using Codecov’s GitHub App Integration. We recommend you install it so Codecov can continue to function properly for your repositories. Learn more

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #621      +/-   ##
==========================================
- Coverage   82.37%   81.35%   -1.02%     
==========================================
  Files          78       78              
  Lines        6104     6120      +16     
==========================================
- Hits         5028     4979      -49     
- Misses       1076     1141      +65     

Impacted Files	Coverage Δ
quetz/dao.py	88.54% <50.00%> (-0.64%)	⬇️
quetz/main.py	86.18% <50.00%> (-0.30%)	⬇️
quetz/tasks/mirror.py	89.31% <50.00%> (-1.32%)	⬇️
quetz/tasks/workers.py	76.16% <50.00%> (-0.25%)	⬇️

... and 1 file with indirect coverage changes

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report in Codecov by Sentry.
📢 Do you have feedback about the report comment? Let us know in this issue.