feat: add the new shells variable to ensure support for all interactive shell.

Fix #269

apparmor.d/groups/ssh/sshd

@@ -61,8 +61,7 @@ profile sshd @{exec_path} flags=(attach_disconnected) {
 
   @{exec_path} mrix,
 
-  @{bin}/{,b,d,rb}ash         rUx,
-  @{bin}/{c,k,tc,z}sh         rUx,
+  @{bin}/@{shells}            rUx,
   @{bin}/false                rix,
   @{bin}/nologin              rPx,
   @{bin}/passwd               rPx,