solana-install update now updates a named release to the latest patch version

install/src/config.rs

@@ -1,9 +1,11 @@
-use crate::update_manifest::UpdateManifest;
-use serde_derive::{Deserialize, Serialize};
-use solana_sdk::pubkey::Pubkey;
-use std::fs::{create_dir_all, File};
-use std::io::{self, Write};
-use std::path::{Path, PathBuf};
+use {
+    crate::update_manifest::UpdateManifest,
+    serde::{Deserialize, Serialize},
+    solana_sdk::pubkey::Pubkey,
+    std::fs::{create_dir_all, File},
+    std::io::{self, Write},
+    std::path::{Path, PathBuf},
+};
 
 #[derive(Serialize, Deserialize, Debug, PartialEq)]
 pub enum ExplicitRelease {