Bump platformsh/client from 0.77.0 to 0.78.0

Bumps [platformsh/client](https://github.com/platformsh/platformsh-client-php) from 0.77.0 to 0.78.0.
- [Commits](platformsh/platformsh-client-php@0.77.0...0.78.0)

---
updated-dependencies:
- dependency-name: platformsh/client
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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