[automated] Update CHANGELOG.md

Author: nf-core-bot

CHANGELOG.md

@@ -13,6 +13,7 @@
 - run nf-test tests on runsOn runners ([#3525](https://github.com/nf-core/tools/pull/3525))
 - Include the centralized nf-core configs also in offline mode, if a local copy is available. ([#3491](https://github.com/nf-core/tools/pull/3491))
 - downgrade nf-schema to fix CI tests ([#3544](https://github.com/nf-core/tools/pull/3544))
+- bump nf-schema back to 2.3.0 ([#3577](https://github.com/nf-core/tools/pull/3577))
 
 ### Linting