Merge pull request #16 from jassics/dependabot/pip/lxml-4.9.1

Bump lxml from 4.8.0 to 4.9.1

Author: jassics

requirements.txt

@@ -32,7 +32,7 @@ importlib-metadata==4.11.1
 isodate==0.6.1
 itsdangerous==2.1.0
 Jinja2==3.0.3
-lxml==4.8.0
+lxml==4.9.1
 Markdown==3.3.6
 MarkupSafe==2.1.0
 mergedeep==1.3.4