Upgraded Maven assembly plugin version to 3.1.1
Upgraded Maven assembly plugin version to 3.1.1

lgoldstein/mina-sshd,lgoldstein/mina-sshd,apache/mina-sshd,lgoldstein/mina-sshd,apache/mina-sshd,lgoldstein/mina-sshd,apache/mina-sshd,apache/mina-sshd