Bump twilio from 6.62.1 to 9.4.1 in /docker/twilio

Bumps [twilio](https://github.com/twilio/twilio-python) from 6.62.1 to 9.4.1.
- [Release notes](https://github.com/twilio/twilio-python/releases)
- [Changelog](https://github.com/twilio/twilio-python/blob/main/CHANGES.md)
- [Upgrade guide](https://github.com/twilio/twilio-python/blob/main/UPGRADE.md)
- [Commits](twilio/twilio-python@6.62.1...9.4.1)

---
updated-dependencies:
- dependency-name: twilio
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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