[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/asottile/blacken-docs: v1.12.1 → 1.13.0](adamchainz/blacken-docs@v1.12.1...1.13.0)
- [github.com/pre-commit/pygrep-hooks: v1.9.0 → v1.10.0](pre-commit/pygrep-hooks@v1.9.0...v1.10.0)

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -25,7 +25,7 @@ repos:
         args: [--safe, --quiet]
         language_version: python3
 -   repo: https://github.com/asottile/blacken-docs
-    rev: v1.12.1
+    rev: 1.13.0
     hooks:
     -   id: blacken-docs
         additional_dependencies: [black==20.8b1]
@@ -35,7 +35,7 @@ repos:
     hooks:
     - id: flake8
 -   repo: https://github.com/pre-commit/pygrep-hooks
-    rev: v1.9.0
+    rev: v1.10.0
     hooks:
     -   id: rst-backticks
 -   repo: local