chore: set changelog

Signed-off-by: Bart Jaskulski <bjaskulski@protonmail.com>

CHANGELOG.md

 # Changelog
 
+## [1.2.8] - 2023-09-14
+### Added
+- Whitelisted some of WooCommerce custom capabilities for sniffs.
+### Changed
+- Removed sniff for unescaped exceptions.
+
 ## [1.2.7] - 2023-08-28
 ### Changed
 - Updated WPCS upstream version to 3.0