fix changelog headers

Author: iliapolo

CHANGELOG.v2.alpha.md

@@ -2,7 +2,7 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
-### [2.167.2-alpha.0](https://github.com/aws/aws-cdk/compare/v2.167.1-alpha.0...v2.167.2-alpha.0) (2024-11-18)
+## [2.167.2-alpha.0](https://github.com/aws/aws-cdk/compare/v2.167.1-alpha.0...v2.167.2-alpha.0) (2024-11-18)
 
 ## [2.167.1-alpha.0](https://github.com/aws/aws-cdk/compare/v2.167.0-alpha.0...v2.167.1-alpha.0) (2024-11-14)
 

CHANGELOG.v2.md

@@ -2,7 +2,7 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
-### [2.167.2](https://github.com/aws/aws-cdk/compare/v2.167.1...v2.167.2) (2024-11-18)
+## [2.167.2](https://github.com/aws/aws-cdk/compare/v2.167.1...v2.167.2) (2024-11-18)
 
 
 ### Bug Fixes