Bump lxml[html-clean] from 6.0.3 to 6.0.4

Bumps [lxml[html-clean]](https://github.com/lxml/lxml) from 6.0.3 to 6.0.4.
- [Release notes](https://github.com/lxml/lxml/releases)
- [Changelog](https://github.com/lxml/lxml/blob/master/CHANGES.txt)
- [Commits](lxml/lxml@lxml-6.0.3...lxml-6.0.4)

---
updated-dependencies:
- dependency-name: lxml[html-clean]
  dependency-version: 6.0.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

pyproject.toml

@@ -68,7 +68,7 @@ dependencies = [
     "jsonschema>=4.22.0,<5",
     "jwcrypto>=1.4.2,<2",
     "levenshtein>=0.27,<0.28",
-    "lxml[html-clean]==6.0.3",
+    "lxml[html-clean]==6.0.4",
     "multipledispatch>=1.0,<2",
     "nameparser>=1.1,<2",  # nameparser is for author name manipulations
     "openpyxl>=3.1,<4",