Fix typos discovered by codespell

[cclauss]

codespell --ignore-words-list=astroid --write-changes .

• https://pypi.org/project/codespell

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.59%. Comparing base (2aa1011) to head (d5c33a3).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #168   +/-   ##
=======================================
  Coverage   93.59%   93.59%           
=======================================
  Files          25       25           
  Lines        1545     1545           
  Branches      307      307           
=======================================
  Hits         1446     1446           
  Misses         71       71           
  Partials       28       28           

Flag	Coverage Δ
python-3.10	93.59% <ø> (ø)
python-3.11	93.59% <ø> (ø)
python-3.8	93.56% <ø> (ø)
python-3.9	93.56% <ø> (ø)

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