Bump black from 20.8b1 to 21.5b1

Bumps [black](https://github.com/psf/black) from 20.8b1 to 21.5b1. - [Release notes](https://github.com/psf/black/releases) - [Changelog](https://github.com/psf/black/blob/main/CHANGES.md) - [Commits](https://github.com/psf/black/commits) Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
aio-libs · May 19, 2021 · 7c400eb · 7c400eb
1 parent 49d13e5
commit 7c400eb
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/requirements/test.txt b/requirements/test.txt
@@ -4,6 +4,6 @@ pytest-cov==2.12.0
 pytest-asyncio==0.15.1
 flake8==3.9.2
 mypy==0.812
-black==20.8b1
+black==21.5b1
 isort==5.8.0
 -r ci.txt