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-client/src/catalog_shell.rs

@@ -14,7 +14,7 @@ use nix::fcntl::OFlag;
 use nix::sys::stat::Mode;
 
 use pathpatterns::{MatchEntry, MatchList, MatchPattern, MatchType, PatternFlag};
-use proxmox::tools::fs::{create_path, CreateOptions};
+use proxmox_sys::fs::{create_path, CreateOptions};
 use proxmox_router::cli::{self, CliCommand, CliCommandMap, CliHelper, CommandLineInterface};
 use proxmox_schema::api;
 use pxar::{EntryKind, Metadata};