Codespell tuneup: no dedicated workflow (part of tox -e lint), and fix few freshly detected typos

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 82.04%. Comparing base (7d2c5fa) to head (80e62bc). Report is 1 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #762 +/- ## ======================================= Coverage 82.04% 82.04% ======================================= Files 42 42 Lines 4205 4205 ======================================= Hits 3450 3450 Misses 755 755 ```

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[github-actions[bot]]

:rocket: PR was released in v1.1.4 :rocket: