The name has been changed to Europe/Kyiv in the development version here:

https://github.com/eggert/tz/commit/e13e9c531fc48a04fb8d064acccc9f8ae68d5544

and this should appear in the next TZDB release, whenever that happens
to be (there is no schedule for it).

PS. This is a repeat of email originally posted here:

https://mm.icann.org/pipermail/tz/2022-June/031510.html