build(deps): bump sphinx from 3.5.3 to 4.0.2

dependabot-preview[bot] · dependabot-preview[bot] · commit 4915190848b0 · 2021-06-02T14:20:35.000Z
Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 3.5.3 to 4.0.2. - [Release notes](https://github.com/sphinx-doc/sphinx/releases) - [Changelog](https://github.com/sphinx-doc/sphinx/blob/4.x/CHANGES) - [Commits](https://github.com/sphinx-doc/sphinx/commits/v4.0.2) Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
diff --git a/docs-requirements.txt b/docs-requirements.txt
@@ -1,4 +1,4 @@
-sphinx==3.5.3
+sphinx==4.0.2
 sphinx-rtd-theme
 sphinx-autodoc-typehints[type_comments]>=1.8.0
 typing-extensions
