Merge pull request #176 from labthings/dependabot/pip/sphinx-3.4.3

Bump sphinx from 3.4.2 to 3.4.3

Author: jtc42

poetry.lock

@@ -28,7 +28,7 @@ black = {version = "^20.8b1",allow-prereleases = true}
 pytest-cov = "^2.11.0"
 jsonschema = "^3.2.0"
 pylint = "^2.6.0"
-sphinx = "^3.4.2"
+sphinx = "^3.4.3"
 sphinx-autoapi = "^1.4.0"
 sphinx-rtd-theme = "^0.5.1"
 mypy = "^0.790"