[JENKINS-73281] Use mina-sshd-api plugin

[basil]

See JENKINS-73281. The sample-plugin test in jenkinsci/bom started failing on the Jetty 12 EE 8 branch with the stack trace shown in the ticket. The root cause of the problem was unrelated to the Jetty 12 EE 8 upgrade but happened to be exposed by the reshuffled classpath of Jetty 12 EE 8; namely, the Subversion test JAR was pulling in an old version of mina-sshd-api-common. Somehow the reshuffled classpath on Jetty 12 EE 8 made this old version take precedence, resulting in the failure:

[INFO] +- org.jenkins-ci.plugins:subversion:jar:1256.vee91953217b_6:test
[INFO] |  +- org.tmatesoft.svnkit:svnkit:jar:1.10.10:test
[INFO] |  |  +- org.apache.sshd:sshd-common:jar:2.8.0:test <---- outdated version that causes `InjectedTest` to fail

The fix is to exclude this old version to allow (the latest version of) this library to be pulled in from the corresponding library plugin.

Testing done

Reproduced the problem described in the ticket in jenkinsci/bom; with the incremental build from this PR, can no longer reproduce the issue.