Merge pull request #374 from sass/pre-commit-ci-update-config

[pre-commit.ci] pre-commit autoupdate

Author: asottile

.pre-commit-config.yaml

@@ -12,12 +12,12 @@ repos:
     -   id: flake8
         exclude: ^docs/conf.py
 -   repo: https://github.com/asottile/pyupgrade
-    rev: v2.29.0
+    rev: v2.29.1
     hooks:
     -   id: pyupgrade
         args: [--py36-plus]
 -   repo: https://github.com/asottile/add-trailing-comma
-    rev: v2.2.0
+    rev: v2.2.1
     hooks:
     -   id: add-trailing-comma
         args: [--py36-plus]