Bump cloudfoundry-client from 1.38.6 to 1.39.0 (#1922)

Bumps [cloudfoundry-client](https://github.com/cloudfoundry-community/cf-python-client) from 1.38.6 to 1.39.0.
- [Commits](cloudfoundry-community/cf-python-client@v1.38.6...v1.39.0)

---
updated-dependencies:
- dependency-name: cloudfoundry-client
  dependency-version: 1.39.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]