Bump net-ssh from 5.2.0 to 6.0.2 (#13555)

Bumps [net-ssh](https://github.com/net-ssh/net-ssh) from 5.2.0 to 6.0.2.
- [Release notes](https://github.com/net-ssh/net-ssh/releases)
- [Changelog](https://github.com/net-ssh/net-ssh/blob/master/CHANGES.txt)
- [Commits](https://github.com/net-ssh/net-ssh/compare/v5.2.0...v6.0.2)

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