update pylint and apply new lint fixes

[fmigneault]

No description provided.

[codecov-commenter]

Codecov Report

Merging #516 (561b5fb) into master (27e060a) will decrease coverage by 0.01%.
The diff coverage is 69.49%.

@@            Coverage Diff             @@
##           master     #516      +/-   ##
==========================================
- Coverage   80.27%   80.26%   -0.02%     
==========================================
  Files          71       71              
  Lines        9615     9615              
  Branches     1323     1323              
==========================================
- Hits         7718     7717       -1     
- Misses       1597     1598       +1     
  Partials      300      300              

Impacted Files	Coverage Δ
magpie/api/login/__init__.py	100.00% <ø> (ø)
magpie/register.py	48.26% <18.18%> (+<0.01%)	⬆️
magpie/models.py	89.13% <60.00%> (ø)
magpie/api/login/login.py	57.67% <66.66%> (ø)
magpie/ui/utils.py	67.39% <66.66%> (ø)
magpie/services.py	79.52% <71.42%> (ø)
magpie/adapter/magpieservice.py	58.10% <83.33%> (ø)
magpie/api/exception.py	93.52% <100.00%> (ø)
magpie/api/management/user/user_utils.py	97.11% <100.00%> (ø)
magpie/api/schemas.py	99.69% <100.00%> (-0.01%)	⬇️
... and 6 more

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