py-lxml: updated to 4.9.3

4.9.3 (2023-07-05)
==================

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

* ``lxml.objectify`` accepted non-decimal numbers like ``族族族`` as integers.

* A memory leak in ``lxml.html.clean`` was resolved by switching to Cython 0.29.34+.

* URL checking in the HTML cleaner was improved.
  Patch by Tim McCormack.

* Some regex strings were changed to raw strings to fix Python warnings.
  Patches by Jakub Wilk and Anthony Sottile.

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

* Wheels include zlib 1.2.13, libxml2 2.10.3 and libxslt 1.1.38
  (zlib 1.2.12, libxml2 2.10.3 and libxslt 1.1.37 on Windows).

* Built with Cython 0.29.36 to adapt to changes in Python 3.12.

(adam)