proxmox-tape: change lookup_drive_name to extract_drive_name

in most uses, we want to remove the drive from the param afterwards
where we don't, we already overwrite it with the result of this function

this fixes some commands (like 'proxmox-tape read-label --drive foo')
that failed with:

parameter 'drive': duplicate parameter.

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

src/bin/proxmox_tape/changer.rs

@@ -42,7 +42,9 @@ pub fn lookup_changer_name(
         return Ok(String::from(name));
     }
 
-    if let Ok(drive) = crate::lookup_drive_name(&Value::Null, config) {
+    let mut empty = Value::Null;
+
+    if let Ok(drive) = crate::extract_drive_name(&mut empty, config) {
         if let Ok(Some((_, name))) = media_changer(config, &drive) {
             return Ok(name);
         }

src/bin/proxmox_tape/encryption_key.rs

@@ -214,7 +214,7 @@ async fn restore_key(
 ) -> Result<(), Error> {
 
     let (config, _digest) = config::drive::config()?;
-    param["drive"] = crate::lookup_drive_name(&param, &config)?.into();
+    param["drive"] = crate::extract_drive_name(&mut param, &config)?.into();
 
     if !tty::stdin_isatty() {
         bail!("no password input mechanism available");