Update CHANGELOG.md

Author: JaGeo

CHANGELOG.md

@@ -1,4 +1,7 @@
 # Changelog
+## v0.4.9
+### What's Changed
+Same as v0.4.8 which did not get released on pypi due to an issue with the release workflow 
 ## v0.4.8
 ### What's Changed
 * change python version from 3.9 to 3.10 in docs generation by @naik-aakash in https://github.com/JaGeo/LobsterPy/pull/322