Update dependency codespell to v2.2.6

Author: renovate[bot]

requirements/lint.txt

@@ -1,7 +1,7 @@
 # Dependencies for linting
 # Fix bandit to a previous version due to bug with .bandit file: https://github.com/PyCQA/bandit/issues/657
 bandit==1.6.2
-codespell==2.1.0
+codespell==2.2.6
 flake8==4.0.1
 flake8-bugbear==21.9.2
 flake8-comprehensions==3.7.0