Bump certifi from 2019.9.11 to 2019.11.28
Bump certifi from 2019.9.11 to 2019.11.28

Bumps [certifi](https://github.com/certifi/python-certifi) from 2019.9.11 to 2019.11.28.
- [Release notes](https://github.com/certifi/python-certifi/releases)
- [Commits](https://github.com/certifi/python-certifi/compare/2019.09.11...2019.11.28)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
moodpulse/l2,moodpulse/l2,moodpulse/l2,moodpulse/l2,moodpulse/l2