Bump certifi from 2024.8.30 to 2024.12.14 in /docker/py-ews

Bumps [certifi](https://github.com/certifi/python-certifi) from 2024.8.30 to 2024.12.14.
- [Commits](certifi/python-certifi@2024.08.30...2024.12.14)

---
updated-dependencies:
- dependency-name: certifi
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]