Bump sphinx from 3.5.2 to 3.5.3 (#803)

dependabot-preview[bot] · web-flow · commit db559e4c2cb6 · 2021-03-22T05:50:34.000Z
diff --git a/requirements.txt b/requirements.txt
@@ -3,7 +3,7 @@ docker==4.4.4
 flake8==3.9.0
 isort==5.7.0
 -e .[sa]
-sphinx==3.5.2
+sphinx==3.5.3
 pytest==6.2.2
 pytest-cov==2.11.1
 pytest-sugar==0.9.4
