Bumps [certifi](https://github.com/certifi/python-certifi) from 2020.11.8 to 2022.12.7.
- [Release notes](https://github.com/certifi/python-certifi/releases)
- [Commits](https://github.com/certifi/python-certifi/compare/2020.11.08...2022.12.07

)

---
updated-dependencies:
- dependency-name: certifi
  dependency-type: indirect
...

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

This reverts commit e5e6e8ae.

- also remove travis config