Bump aioredis from 1.2.0 to 1.3.0

Bumps [aioredis](https://github.com/aio-libs/aioredis) from 1.2.0 to 1.3.0.
- [Release notes](https://github.com/aio-libs/aioredis/releases)
- [Changelog](https://github.com/aio-libs/aioredis/blob/master/CHANGES.txt)
- [Commits](https://github.com/aio-libs/aioredis/compare/v1.2.0...v1.3.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

requirements-dev.txt

@@ -9,7 +9,7 @@ sphinx==2.2.0
 pep257==0.7.0
 aiohttp-session==2.8.0
 aiopg[sa]==1.0.0
-aioredis==1.2.0
+aioredis==1.3.0
 hiredis==1.0.0
 passlib==1.7.1
 cryptography==2.7