Update clap to 4.0.0

src/main.rs

@@ -4,20 +4,20 @@ use std::process;
 
 use log::debug;
 
-use clap::Parser;
+use clap::{Parser, Subcommand};
 use serde::{Deserialize, Serialize};
 
 const BASE_URL: &str = "https://api.azirevpn.com/v1";
 
 /// AzireVPN client
 #[derive(Parser, Debug)]
-#[clap(version)]
+#[command(version)]
 struct Opts {
     /// Enables JSON output
-    #[clap(short, long)]
+    #[arg(short, long)]
     json: bool,
 
-    #[clap(subcommand)]
+    #[command(subcommand)]
     command: Command,
 }
 
@@ -27,14 +27,14 @@ struct ConfigOpts {
     username: String,
     token: String,
 
-    #[clap(short, long)]
+    #[arg(short, long)]
     no_dns: bool,
 
-    #[clap(short = '4', long)]
+    #[arg(short = '4', long)]
     no_ipv6: bool,
 }
 
-#[derive(Parser, Debug)]
+#[derive(Subcommand, Debug)]
 enum Command {
     /// Prints the list of VPN endpoints
     Endpoints,