Update docutils requirement from <0.19 to <0.20 (#1120)

Updates the requirements on [docutils](https://docutils.sourceforge.io/) to permit the latest version.

---
updated-dependencies:
- dependency-name: docutils
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]

pyproject.toml

@@ -72,7 +72,7 @@ lint = [
 docs = [
     # needed because m2r uses deprecated APIs
     # m2r is depended on by sphinxcontrib-openapi
-    "docutils<0.19",
+    "docutils<0.20",
     "ipykernel",
     "jinja2",
     "jupyter_client",