[Dependabot]: Update lxml requirement from ~=5.3 to ~=5.4

[dependabot]

Updates the requirements on lxml to permit the latest version.

Release notes

Sourced from lxml's releases.

lxml-5.4.0

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

Changelog

Sourced from lxml's changelog.

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.

5.3.2 (2025-04-05)

This release resolves CVE-2025-24928 as described in https://gitlab.gnome.org/GNOME/libxml2/-/issues/847

Bugs fixed

• Binary wheels use libxml2 2.12.10 and libxslt 1.1.42.

• Binary wheels for Windows use a patched libxml2 2.11.9 and libxslt 1.1.39.

5.3.1 (2025-02-09)

Bugs fixed

• GH#440: Some tests were adapted for libxml2 2.14.0. Patch by Nick Wellnhofer.

• LP#2097175: DTD(external_id="…") erroneously required a byte string as ID value.

• GH#450: iterparse() internally triggered the `DeprecationWarning`` added in lxml 5.3.0 when parsing HTML.

Other changes

• GH#442: Binary wheels for macOS no longer use the linker flag -flat_namespace.

5.3.0 (2024-08-10)

Features added

... (truncated)

Commits

• 6e76d57 Build: Exclude slow Py3.9 wheel builds for s390/ppc and Py3.7 for ARM64.
• ee10c02 Prepare release of lxml 5.4.0.
• 0e4f3c3 Prepare release of lxml 5.3.3.
• b4703fc Update changelog.
• db723bb Build: Use libxslt 1.1.43 instead of 1.1.42 to resolve some CVEs.
• a664877 Build: Use libxml2 2.13.8 instead of 2.12.x to resolve some CVEs.
• df4633e Remove appveyor usage.
• 820db89 CI: Allow Py3.14 jobs to fail.
• 93ad02a docs: Add a note about C compiler installation to error message (GH-454)
• 16878da Add some hints to the documentation on how to build lxml (GH-453)
• Additional commits viewable in compare view

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[dependabot]

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[dependabot]

Looks like lxml is up-to-date now, so this is no longer needed.