Update requests from 2.20.1 to 2.21.0 (#183)

pyup-bot · Mariatta · commit 5da7e5c626a4 · 2018-12-10T19:27:08.000-08:00
diff --git a/requirements.txt b/requirements.txt
@@ -2,6 +2,6 @@ cherry_picker==1.2.1
 aiohttp==3.4.4
 gidgethub==3.0.0
 cachetools==3.0.0
-requests==2.20.1
+requests==2.21.0
 redis==2.10.6
 celery==4.2.1
