switch from failure to anyhow

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

src/api2/config/remote.rs

@@ -1,4 +1,4 @@
-use failure::*;
+use anyhow::{bail, Error};
 use serde_json::Value;
 
 use proxmox::api::{api, ApiMethod, Router, RpcEnvironment, Permission};