Bump lxml from 4.3.3 to 4.6.2 (#105)

Bumps [lxml](https://github.com/lxml/lxml) from 4.3.3 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-4.3.3...lxml-4.6.2)

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

Author: dependabot[bot]

requirements.txt

@@ -8,4 +8,4 @@ loguru==0.3.2
 pyquery==1.4.0
 supervisor==4.1.0
 redis==2.10.6
-lxml==4.3.3
+lxml==4.6.2