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

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

CHANGELOG.md

@@ -7,8 +7,8 @@ and adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## Unreleased
 
-
 ### Enhancements
+
 - Both PlainReporter and ColorReporter emphasize specific code chunks by using overline characters under any part that is highlighted as ERROR.
 
 ## [2.6.3] - 2023-10-09