Merge pull request #9 from agilegeeks/dependabot/pip/lxml-4.9.1

Bump lxml from 4.6.5 to 4.9.1

requirements.txt

@@ -6,7 +6,7 @@ chardet==3.0.4
 defusedxml==0.5.0
 idna==2.8
 isodate==0.6.0
-lxml==4.6.5
+lxml==4.9.1
 pytz==2018.7
 requests==2.21.0
 requests-toolbelt==0.8.0