[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -19,7 +19,7 @@ repos:
       - id: trailing-whitespace
 
   - repo: https://github.com/adamchainz/blacken-docs
-    rev: dda8db18cfc68df532abf33b185ecd12d5b7b326  # frozen: 1.20.0
+    rev: dda8db18cfc68df532abf33b185ecd12d5b7b326 # frozen: 1.20.0
     hooks:
       - id: blacken-docs