db: add djade pre-commit to default associations

[GabDug]

• Add https://github.com/adamchainz/djade-pre-commit to default associations.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.32%. Comparing base (74754ed) to head (aa87e06).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #45   +/-   ##
=======================================
  Coverage   96.32%   96.32%           
=======================================
  Files           9        9           
  Lines         572      572           
  Branches      105      105           
=======================================
  Hits          551      551           
  Misses         18       18           
  Partials        3        3           

Flag	Coverage Δ
unittests	96.15% <ø> (ø)

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