Force update lenovo firmware (#86)

In cases when lenovo machines have a higher version of a firmware
component compared to what is in the desired_firmware table, the upgrade
silently succeeds as a noop. But since the versions didn't change the
machine gets stuck in a loop.

This change will force the update even if the current version is higher.

Author: rahmonov

src/lenovo.rs

@@ -2004,13 +2004,15 @@ struct UpdateParameters {
     targets: Vec<String>,
     #[serde(rename = "@Redfish.OperationApplyTime")]
     operation_apply_time: String,
+    force_update: bool,
 }
 
 impl UpdateParameters {
     fn new() -> Self {
         Self {
             targets: vec![],
             operation_apply_time: "Immediate".to_string(),
+            force_update: true,
         }
     }
 }