Bump lxml from 4.9.3 to 4.9.4 (#82)

Bumps [lxml](https://github.com/lxml/lxml) from 4.9.3 to 4.9.4.
- [Release notes](https://github.com/lxml/lxml/releases)
- [Changelog](https://github.com/lxml/lxml/blob/master/CHANGES.txt)
- [Commits](lxml/lxml@lxml-4.9.3...lxml-4.9.4)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -13,5 +13,5 @@ cached-property==1.5.2
 requests-oauthlib==1.3.1
 celery==5.3.6
 requests-mock==1.11.0
-lxml==4.9.3
+lxml==4.9.4
 djangorestframework-csv==3.0.2