proxmox-tape: add missing notify-user to 'proxmox-tape restore'

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>

src/bin/proxmox-tape.rs

@@ -31,6 +31,7 @@ use proxmox_backup::{
             DRIVE_NAME_SCHEMA,
             MEDIA_LABEL_SCHEMA,
             MEDIA_POOL_NAME_SCHEMA,
+            Userid,
         },
     },
     config::{
@@ -863,6 +864,10 @@ async fn backup(mut param: Value) -> Result<(), Error> {
                 description: "Media set UUID.",
                 type: String,
             },
+            "notify-user": {
+                type: Userid,
+                optional: true,
+            },
             "output-format": {
                 schema: OUTPUT_FORMAT,
                 optional: true,