use io_format_err, io_bail, io_err_other from proxmox-lang

and move the comment from the local io_bail in pbs-client/src/pxar/fuse.rs
to the only use

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

pbs-datastore/src/cached_chunk_reader.rs

@@ -10,8 +10,8 @@ use anyhow::Error;
 use futures::ready;
 use tokio::io::{AsyncRead, AsyncSeek, ReadBuf};
 
-use proxmox_sys::io_format_err;
-use proxmox_sys::error::io_err_other;
+use proxmox_lang::io_format_err;
+use proxmox_lang::error::io_err_other;
 
 use pbs_tools::async_lru_cache::{AsyncCacher, AsyncLruCache};