The hailo-all package has not been updated by Raspberry yet.
You can still install Raspberry Pi OS based on the previous version Debian 12 (Bookworm). For more details please read my answer to the following forum post.
Hailo Community - Raspberry Pi 5 + AI Hat (26 TOPS) - Unable to locate package hailo-all
This has also been confirmed in the Raspberry forum. See this post, one of our forum users shared.
Hailo Community - Hailo-all images not ready for Raspberry Pi “Trixie”