Update CHANGELOG.md

Co-authored-by: Júlia Mir Pedrol <[email protected]>

Author: mashehu

CHANGELOG.md

@@ -8,7 +8,7 @@
 - Fix Jinja2 template formatting in nextflow.config ([#3836](https://github.com/nf-core/tools/pull/3836))
 - Add codespaces badge to template README ([#3824](https://github.com/nf-core/tools/pull/3824))
 
-## [v3.4.0 - Ducol Dingo](https://github.com/nf-core/tools/releases/tag/3.4.0) - [2025-10-10]
+## [v3.4.0 - Ducol Dingo](https://github.com/nf-core/tools/releases/tag/3.4.0) - [2025-10-15]
 
 **Highlights**