chore(deps): bump six from 1.15.0 to 1.16.0

Bumps [six](https://github.com/benjaminp/six) from 1.15.0 to 1.16.0.
- [Release notes](https://github.com/benjaminp/six/releases)
- [Changelog](https://github.com/benjaminp/six/blob/master/CHANGES)
- [Commits](benjaminp/six@1.15.0...1.16.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

requirements.txt

@@ -38,7 +38,7 @@ ruamel.yaml==0.17.4
     # via drode (setup.py)
 s3transfer==0.4.2
     # via boto3
-six==1.15.0
+six==1.16.0
     # via python-dateutil
 tabulate==0.8.9
     # via drode (setup.py)