update to proxmox-sys 0.2 crate

- imported pbs-api-types/src/common_regex.rs from old proxmox crate
- use hex crate to generate/parse hex digest
- remove all reference to proxmox crate (use proxmox-sys and
  proxmox-serde instead)

Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>

pbs-api-types/src/tape/media_location.rs

@@ -22,8 +22,8 @@ pub enum MediaLocation {
     Vault(String),
 }
 
-proxmox::forward_deserialize_to_from_str!(MediaLocation);
-proxmox::forward_serialize_to_display!(MediaLocation);
+proxmox_serde::forward_deserialize_to_from_str!(MediaLocation);
+proxmox_serde::forward_serialize_to_display!(MediaLocation);
 
 impl proxmox_schema::ApiType for MediaLocation {
     const API_SCHEMA: Schema = StringSchema::new(