Merge branch 'renovate/charset-normalizer-2.x' into 'master'

Update dependency charset-normalizer to v2.0.6

See merge request openappstack/openappstack!521

docs/requirements.txt

@@ -10,7 +10,7 @@ babel==2.9.1
     # via sphinx
 certifi==2021.10.8
     # via requests
-charset-normalizer==2.0.4
+charset-normalizer==2.0.6
     # via requests
 commonmark==0.9.1
     # via recommonmark