Bump isort from 5.9.3 to 5.10.1 (#270)

Bumps [isort](https://github.com/pycqa/isort) from 5.9.3 to 5.10.1.
- [Release notes](https://github.com/pycqa/isort/releases)
- [Changelog](https://github.com/PyCQA/isort/blob/main/CHANGELOG.md)
- [Commits](PyCQA/isort@5.9.3...5.10.1)

---
updated-dependencies:
- dependency-name: isort
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

requirements_dev.txt

@@ -2,7 +2,7 @@
 
 black==21.11b1
 flake8==4.0.1
-isort==5.9.3
+isort==5.10.1
 mypy==0.910
 pillow==8.4.0
 pip-tools==6.4.0