SFTP: ClientSession associated with SftpSession is never closed.

[darrylsmithUGA]

In what version(s) of Spring Integration are you seeing this issue?

6.3.1

Describe the bug

ClientSession associated with SftpSession is never closed. If the SFTP server is not setup to timeout these connections eventually no more connections can be made to the SFTP server.

Also described here: https://stackoverflow.com/questions/78226325/spring-integration-open-a-new-ssh-connection-after-each-sftpexception