Add vpsPort option to lidarr-mb-gap NixOS module

- Introduced a new configuration option `vpsPort` to specify the SSH port for VPS connections, defaulting to 22.
- Updated the rsync command to utilize the new `vpsPort` option for improved flexibility in SSH configurations.

nixos/lidarr-mb-gap.nix

@@ -73,6 +73,12 @@ in
       description = "Path on VPS where reports should be synced";
     };
     
+    vpsPort = lib.mkOption {
+      type = lib.types.port;
+      default = 22;
+      description = "SSH port for VPS connection";
+    };
+    
     sshKeyFile = lib.mkOption {
       type = lib.types.nullOr lib.types.str;
       default = null;
@@ -151,7 +157,8 @@ in
 
               # Use SSH options with rsync (use full path to ssh)
               ${pkgs.rsync}/bin/rsync -avz --delete \
-                -e "${pkgs.openssh}/bin/ssh $SSH_OPTS -o StrictHostKeyChecking=yes" \
+                -e "${pkgs.openssh}/bin/ssh $SSH_OPTS -p ${toString config.services.lidarr-mb-gap.vpsPort} -o \
+                StrictHostKeyChecking=yes" \
                 ${config.services.lidarr-mb-gap.reportDir}/ \
                 ${config.services.lidarr-mb-gap.vpsHost}:${config.services.lidarr-mb-gap.vpsPath}/
             ''