5.4.0 (2025-04-22)

Bugs fixed

• LP#2107279: Binary wheels use libxml2 2.13.8 and libxslt 1.1.43 to resolve several CVEs.
  (Binary wheels for Windows continue to use a patched libxml2 2.11.9 and libxslt 1.1.39.)
  Issue found by Anatoly Katyushin, see https://bugs.launchpad.net/lxml/+bug/2107279