fix(ecstore): finalize decommission capacity recovery (#6955)

crates/ecstore/src/store/multipart.rs

@@ -1103,6 +1103,7 @@ mod tests {
             decommission_cancelers: RwLock::new(Vec::new()),
             start_gate: Mutex::new(()),
             pool_meta_save_gate: Mutex::default(),
+            decommission_capacity_entry_gate: Mutex::default(),
             ctx: crate::runtime::instance::bootstrap_ctx(),
             bucket_fence_registry: std::sync::Arc::default(),
         }