Log Message:
py-lxml: updated to 5.3.1

5.3.1 (2025-02-09)

Bugs fixed

* Some tests were adapted for libxml2 2.14.0.
* ``DTD(external_id="…")`` erroneously required a byte string as ID \ 
value.
* ``iterparse()`` internally triggered the `DeprecationWarning`` added in lxml \ 
5.3.0 when parsing HTML.

Other changes

* Binary wheels for macOS no longer use the linker flag ``-flat_namespace``.