Update sphinx version (#248)

Vertexwahn · web-flow · commit a2446e35d17d · 2022-04-01T15:00:21.000-07:00
Signed-off-by: Julian Amann &lt;julian.amann@tum.de&gt;
diff --git a/docs/requirements.txt b/docs/requirements.txt
@@ -1,2 +1,2 @@
 breathe
-sphinx == 4.0.3
+sphinx == 4.4.0
