Log Message:
py-lxml: update to 5.1.1.

5.1.1 (2024-03-28)
==================

Bugs fixed
----------

* LP#2048920: ``iterlinks()`` in ``lxml.html`` rejected ``bytes`` input in 5.1.0.

* High source line numbers from the parser are no longer truncated
  (up to a C ``long``) when using libxml2 2.11 or later.

* GH#407: A compatibility test was adapted to recent expat versions.
  Patch by Miro Hrončok.

Other changes
-------------

* Binary wheels use the library versions libxml2 2.12.6 and libxslt 1.1.39.

* Windows binary wheels use the library versions libxml2 2.11.7 and libxslt 1.1.39.

* Built with Cython 3.0.9.