[chore] Upgrade mina-sshd from 2.13.2 to 2.14.0

[Dohbedoh]

(required for #114)
Not yet available in Maven Central. Should be very soon.

Testing done

N/A

Submitter checklist

• Make sure you are opening from a topic/feature/bugfix branch (right side) and not your main branch!
• Ensure that the pull request title represents the desired changelog entry
• Please describe what you did
• Link to relevant issues in GitHub or Jira
• Link to relevant pull requests, esp. upstream and downstream changes
• Ensure you have provided tests - that demonstrates feature works or fixes the issue

[jglick]

BTW there should be only one categorization label per PR in general; for changing the version of a bundled library, enhancement is usually appropriate.