DOC: Update Changelog for PR #1049

Author: github-actions[bot]

CHANGELOG.md

@@ -32,6 +32,7 @@ Attention: The newest changes should be on top -->
 
 ### Added
 
+- ENH: ENH: `Function` vectorized speed-up and refactor [#1049](https://github.com/RocketPy-Team/RocketPy/pull/1049)
 - ENH: Function vectorized speed-up and refactor [#1049](https://github.com/RocketPy-Team/RocketPy/pull/1049)
 - ENH: REV: Revert PR #958 [#1063](https://github.com/RocketPy-Team/RocketPy/pull/1063)
 - ENH: MNT: remove duplicate and merge-sync entries from Unreleased changelog [#1062](https://github.com/RocketPy-Team/RocketPy/pull/1062)