Update to django 4.2

[Spitfireap]

No description provided.

[codecov]

Codecov Report

Merging #153 (2495793) into master (e3c1f00) will increase coverage by 0.02%.
The diff coverage is 92.59%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #153      +/-   ##
==========================================
+ Coverage   91.55%   91.57%   +0.02%     
==========================================
  Files          22       22              
  Lines        1373     1377       +4     
==========================================
+ Hits         1257     1261       +4     
  Misses        116      116              

Impacted Files	Coverage Δ
modoboa_amavis/sql_connector.py	89.91% <ø> (ø)
modoboa_amavis/lib.py	91.69% <50.00%> (ø)
modoboa_amavis/checks/settings_checks.py	82.14% <100.00%> (ø)
modoboa_amavis/constants.py	100.00% <100.00%> (ø)
modoboa_amavis/forms.py	96.38% <100.00%> (ø)
modoboa_amavis/handlers.py	86.40% <100.00%> (ø)
modoboa_amavis/management/commands/amnotify.py	91.80% <100.00%> (ø)
modoboa_amavis/models.py	100.00% <100.00%> (ø)
modoboa_amavis/modo_extension.py	84.00% <100.00%> (ø)
modoboa_amavis/sql_email.py	92.30% <100.00%> (ø)
... and 3 more

... and 1 file with indirect coverage changes

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