Bump codespell from 2.2.5 to 2.2.6 (#4594)

Bumps [codespell](https://github.com/codespell-project/codespell) from 2.2.5 to 2.2.6.
- [Release notes](https://github.com/codespell-project/codespell/releases)
- [Commits](codespell-project/codespell@v2.2.5...v2.2.6)

---
updated-dependencies:
- dependency-name: codespell
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -1 +1 @@
-codespell==2.2.5
+codespell==2.2.6