update changelog

Author: pinin4fjords

CHANGELOG.md

@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - [PR #1380](https://github.com/nf-core/rnaseq/pull/1380) - Fix issues with R modules changing sample names
 - [PR #1381](https://github.com/nf-core/rnaseq/pull/1381) - Update all modules following massive conda usage update in nf-core modules
 - [PR #1382](https://github.com/nf-core/rnaseq/pull/1381) - Slight fixes for rnaseq preprocessing
+- [P$ #1383](https://github.com/nf-core/rnaseq/pull/1383) - Prerelease 3.15.1 version bumps
 
 ## [[3.15.0](https://github.com/nf-core/rnaseq/releases/tag/3.15.0)] - 2024-09-04