Update date in CHANGELOG

Author: drpatelh

CHANGELOG.md

@@ -3,7 +3,7 @@
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [[2.0.0](https://github.com/nf-core/chipseq/releases/tag/2.0.0)] - 2022-09-30
+## [[2.0.0](https://github.com/nf-core/chipseq/releases/tag/2.0.0)] - 2022-10-03
 
 ### Enhancements & fixes