Bump lxml from 4.9.0 to 4.9.1

Bumps [lxml](https://github.com/lxml/lxml) from 4.9.0 to 4.9.1.
- [Release notes](https://github.com/lxml/lxml/releases)
- [Changelog](https://github.com/lxml/lxml/blob/master/CHANGES.txt)
- [Commits](lxml/lxml@lxml-4.9.0...lxml-4.9.1)

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

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

Author: dependabot[bot]

requirements.txt

@@ -38,7 +38,7 @@ inflection==0.5.1
 itsdangerous==2.1.2
 Jinja2==3.1.2
 joblib==1.1.0
-lxml==4.9.0
+lxml==4.9.1
 MarkupSafe==2.1.1
 more-itertools==8.13.0
 msgpack==1.0.3