update to first proxmox crate split

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

src/bin/proxmox_backup_manager/subscription.rs

@@ -1,7 +1,8 @@
 use anyhow::Error;
 use serde_json::Value;
 
-use proxmox::api::{api, cli::*, RpcEnvironment, ApiHandler};
+use proxmox_router::{cli::*, ApiHandler, RpcEnvironment};
+use proxmox_schema::api;
 
 use proxmox_backup::api2;