Update lxml requirement from ~=4.9.2 to ~=4.9.3

Updates the requirements on [lxml](https://github.com/lxml/lxml) to permit the latest version.
- [Release notes](https://github.com/lxml/lxml/releases)
- [Changelog](https://github.com/lxml/lxml/blob/master/CHANGES.txt)
- [Commits](lxml/lxml@lxml-4.9.2...lxml-4.9.3)

---
updated-dependencies:
- dependency-name: lxml
  dependency-type: direct:production
...

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

requirements.txt

@@ -1,6 +1,6 @@
 Django~=4.2.2
 beautifulsoup4~=4.12.2
-lxml~=4.9.2
+lxml~=4.9.3
 requests~=2.31.0
 nltk~=3.8.1
 pandas~=2.0