Fixed sphinx version until sphinx plugins are updated to use 3.0.0.

8509728a · Lauri Himanen · 2c3b3495 · 8509728a
Commit 8509728a authored Apr 07, 2020 by Lauri Himanen
--- a/requirements.txt
+++ b/requirements.txt
@@ -60,7 +60,7 @@ python-json-logger

 # dev/ops related
 setuptools
-sphinx
+sphinx==2.4.4
 sphinxcontrib.httpdomain
 sphinx-click
 sphinx_rtd_theme