Bump rope from 0.19.0 to 0.20.1 (#109)

Bumps [rope](https://github.com/python-rope/rope) from 0.19.0 to 0.20.1.
- [Release notes](https://github.com/python-rope/rope/releases)
- [Changelog](https://github.com/python-rope/rope/blob/master/CHANGELOG.md)
- [Commits](https://github.com/python-rope/rope/commits)

---
updated-dependencies:
- dependency-name: rope
  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>

pyproject.toml

@@ -18,7 +18,7 @@ soupsieve = "<3.0"
 pre-commit = "1.21.0"
 pylint = "^2.9.6"
 pytest = ">=4.6.6"
-rope = "0.19.0"
+rope = "0.20.1"
 
 [tool.poetry.scripts]
 rfd = "rfd.__main__:cli"