build(deps): bump olot from 0.1.7 to 0.1.8 in /clients/python (kubeflow#1260)

Bumps olot from 0.1.7 to 0.1.8.

---
updated-dependencies:
- dependency-name: olot
  dependency-version: 0.1.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]