Bump pycti from 5.12.33 to 6.4.5 in /docker/opencti-v4

Bumps [pycti](https://github.com/OpenCTI-Platform/client-python) from 5.12.33 to 6.4.5.
- [Release notes](https://github.com/OpenCTI-Platform/client-python/releases)
- [Commits](OpenCTI-Platform/client-python@5.12.33...6.4.5)

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

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