build(deps): bump lxml from 4.5.0 to 4.5.1

Bumps [lxml](https://github.com/lxml/lxml) from 4.5.0 to 4.5.1.
- [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-4.5.1)

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

Author: dependabot[bot]

requirements.txt

@@ -7,7 +7,7 @@ mcstatus==3.1.0
 googlemaps==4.2.0
 imgurpython==1.1.7
 isodate==0.6.0
-lxml==4.5.0
+lxml==4.5.1
 multidict==4.7.6
 nltk==3.5
 psutil==5.7.0