Simplify Cargo.toml dependencies

Still need two copies of the dependencies, but at least they're in one place now.

server/Cargo.toml

@@ -4,5 +4,5 @@ version = "0.2.0"
 edition = "2021"
 
 [dependencies]
-clap = { version = "4.5.20", features = ["derive"] }
-common = { path = "../common" }
+clap = { workspace = true }
+common = { workspace = true }

server/src/options.rs

@@ -4,7 +4,7 @@ use clap::Parser;
 use std::sync::LazyLock;
 
 #[derive(Parser, Clone, Debug)]
-/// saslauthd server/client
+/// saslauthd server
 pub struct Opt {
     #[arg(
         short = 'f',