Merge pull request #316 from staticdev/dependabot/pip/sphinx-4.0.2

Bump sphinx from 3.5.4 to 4.0.2

Author: Thiago D'Ávila

poetry.lock

@@ -45,7 +45,7 @@ coverage = {extras = ["toml"], version = "^5.3"}
 pytest-django = "^4.1.0"
 pygments = "^2.7.4"
 xdoctest = "^0.15.0"
-sphinx = "^3.4.3"
+sphinx = "^4.0.2"
 sphinx-autobuild = "^2020.9.1"
 darglint = "^1.5.8"
 flake8-docstrings = "^1.5.0"