Bump docutils from 0.19 to 0.20.1 (#1666)

Bumps [docutils](https://docutils.sourceforge.io/) from 0.19 to 0.20.1.

---
updated-dependencies:
- dependency-name: docutils
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: studioj <22102283+studioj@users.noreply.github.com>

constraints.txt

@@ -37,7 +37,7 @@ decorator==5.1.1
     # via ipython
 defusedxml==0.7.1
     # via jira (setup.cfg)
-docutils==0.19
+docutils==0.20.1
     # via
     #   jira (setup.cfg)
     #   sphinx