Bump tfx-cli in /cantarus-polydeploy-client-installer

Bumps [tfx-cli](https://github.com/Microsoft/tfs-cli) from 0.19.0 to 0.20.0.
- [Release notes](https://github.com/Microsoft/tfs-cli/releases)
- [Commits](https://github.com/Microsoft/tfs-cli/commits)

---
updated-dependencies:
- dependency-name: tfx-cli
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]