Bump lxml from 4.6.3 to 4.6.5

Bumps [lxml](https://github.com/lxml/lxml) from 4.6.3 to 4.6.5.
- [Release notes](https://github.com/lxml/lxml/releases)
- [Changelog](https://github.com/lxml/lxml/blob/master/CHANGES.txt)
- [Commits](lxml/lxml@lxml-4.6.3...lxml-4.6.5)

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

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

Author: dependabot[bot]

elevator-pipeline/requirements.txt

@@ -28,7 +28,7 @@ jupyter==1.0.0
 jupyter-client==5.0.0
 jupyter-console==5.1.0
 jupyter-core==4.3.0
-lxml==4.6.3
+lxml==4.6.5
 MarkupSafe==1.0
 memento-client==0.5.3
 mistune==0.8.1

requirements.txt

@@ -2,4 +2,4 @@ SQLAlchemy>=1.0.13
 requests>=2.10.0
 psycopg2>=2.6.2
 tweepy==3.5.0
-lxml==4.6.3
+lxml==4.6.5