Don't check affected rows when deleting task

[sandreae]

closes: #458

📋 Checklist

• Add tests that cover your changes
• Add this PR to the Unreleased section in CHANGELOG.md
• Link this PR to any issues it closes
• New files contain a SPDX license header

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.01% 🎉

Comparison is base (25707ca) 91.82% compared to head (55c5d0b) 91.83%.

❗ Current head 55c5d0b differs from pull request most recent head 157f59d. Consider uploading reports for the commit 157f59d to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #461      +/-   ##
==========================================
+ Coverage   91.82%   91.83%   +0.01%     
==========================================
  Files         100      100              
  Lines       15733    15731       -2     
==========================================
  Hits        14447    14447              
+ Misses       1286     1284       -2     

Files Changed	Coverage Δ
aquadoggo/src/db/stores/task.rs	98.33% <100.00%> (+0.79%)	⬆️

... and 2 files with indirect coverage changes

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.