Bump lxml from 6.0.2 to 6.0.3

Bumps [lxml](https://github.com/lxml/lxml) from 6.0.2 to 6.0.3.
- [Release notes](https://github.com/lxml/lxml/releases)
- [Changelog](https://github.com/lxml/lxml/blob/master/CHANGES.txt)
- [Commits](lxml/lxml@lxml-6.0.2...lxml-6.0.3)

---
updated-dependencies:
- dependency-name: lxml
  dependency-version: 6.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pyproject.toml

@@ -35,7 +35,7 @@ dependencies = [
     "django-weasyprint==2.4.0",
     "icalendar==6.3.2",
     "irc3==1.1.10",
-    "lxml==6.0.2",
+    "lxml==6.0.3",
     "nh3==0.3.2",
     "openpyxl==3.1.5",  # used to import excel files in economy backoffice
     "pandas==3.0.0",