Bump redis from 3.3.2 to 3.3.4 (#257)

dependabot-preview[bot] · web-flow · commit 9e60bfbd92d8 · 2019-07-31T05:59:36.000Z
diff --git a/requirements.txt b/requirements.txt
@@ -2,6 +2,6 @@ cherry_picker==1.3.2
 aiohttp==3.5.4
 gidgethub==3.1.0
 cachetools==3.1.1
-redis==3.3.2
+redis==3.3.4
 celery==4.3.0
 sentry-sdk==0.10.2
