Build(deps): Bump lxml from 4.5.0 to 4.6.2 (#417)

Bumps [lxml](https://github.com/lxml/lxml) from 4.5.0 to 4.6.2.
- [Release notes](https://github.com/lxml/lxml/releases)
- [Changelog](https://github.com/lxml/lxml/blob/master/CHANGES.txt)
- [Commits](lxml/lxml@lxml-4.5.0...lxml-4.6.2)

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

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

requirements.txt

@@ -33,7 +33,7 @@ icalendar==4.0.7
 idna==2.10
 imgurpython==1.1.7
 importlib-metadata==2.0.0
-lxml==4.5.2
+lxml==4.6.2
 Markdown==3.3
 msgpack==1.0.0
 packaging==20.4