Bump lxml from 4.9.3 to 5.0.0

Bumps [lxml](https://github.com/lxml/lxml) from 4.9.3 to 5.0.0.
- [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-5.0.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -15,7 +15,7 @@ et-xmlfile==1.1.0
 gunicorn==21.2.0
 idna==3.4
 isodate==0.6.1
-lxml==4.9.3
+lxml==5.0.0
 mysqlclient==2.2.0
 openpyxl==3.1.2
 pycparser==2.21