feat(profile): ssh: add sshd-session

fix #442

apparmor.d/groups/ssh/sshd

@@ -67,6 +67,7 @@ profile sshd @{exec_path} flags=(attach_disconnected) {
   @{bin}/nologin              rPx,
   @{bin}/passwd               rPx,
   @{lib}/openssh/sftp-server  rPx,
+  @{lib}/ssh/sshd-session     rix,
 
   @{etc_ro}/environment r,
   @{etc_ro}/security/limits.d/{,*.conf} r,