Sergei Trofimovich 73e6d3ed00 xz: 5.2.9 -> 5.4.0 ...

Changes: https://git.tukaani.org/?p=xz.git;a=blob;f=NEWS;hb=HEAD

While at it fixed the updater to pick single first (most recent)
version.

2022-12-18 13:30:03 +00:00

..

default.nix

xz: 5.2.9 -> 5.4.0

2022-12-18 13:30:03 +00:00