Adopt more lint rules

[blink1073]

No description provided.

[codecov]

Codecov Report

Base: 80.29% // Head: 80.46% // Increases project coverage by +0.16% 🎉

Coverage data is based on head (17a6783) compared to base (b6c1edb).
Patch coverage: 65.82% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1189      +/-   ##
==========================================
+ Coverage   80.29%   80.46%   +0.16%     
==========================================
  Files          68       68              
  Lines        8149     8117      -32     
  Branches     1605     1584      -21     
==========================================
- Hits         6543     6531      -12     
+ Misses       1181     1172       -9     
+ Partials      425      414      -11     

Impacted Files	Coverage Δ
jupyter_server/auth/__main__.py	0.00% <0.00%> (ø)
jupyter_server/i18n/__init__.py	44.23% <0.00%> (+1.63%)	⬆️
jupyter_server/services/kernels/connection/base.py	73.25% <0.00%> (ø)
...ter_server/services/kernels/connection/channels.py	62.16% <0.00%> (+0.05%)	⬆️
jupyter_server/utils.py	85.46% <0.00%> (ø)
jupyter_server/gateway/managers.py	83.60% <33.33%> (+0.19%)	⬆️
jupyter_server/services/kernels/kernelmanager.py	81.81% <41.66%> (+0.24%)	⬆️
jupyter_server/gateway/gateway_client.py	78.52% <44.44%> (+0.71%)	⬆️
jupyter_server/traittypes.py	62.90% <50.00%> (-0.52%)	⬇️
jupyter_server/serverapp.py	80.21% <80.00%> (+0.37%)	⬆️
... and 10 more

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