Merge branch '1346-selectoreventloop-required-instead-got-uvloop-loop' into 'develop'

Resolve "SelectorEventLoop required, instead got uvloop.Loop"

Closes #1346

See merge request funkwhale/funkwhale!1278

api/requirements/base.txt

@@ -72,3 +72,6 @@ markdown~=3.2.0
 bleach~=3.1.0
 feedparser~=6.0.0
 watchdog~=1.0.2
+
+## Pin third party dependency to avoid issue with latest version
+twisted==20.3.0