show latest major version available in gleam deps update

compiler-cli/src/add.rs

@@ -27,6 +27,7 @@ pub fn command(packages_to_add: Vec<String>, dev: bool) -> Result<()> {
         Some((new_package_requirements.clone(), dev)),
         Vec::new(),
         UseManifest::Yes,
+        false,
     )?;
 
     // Read gleam.toml and manifest.toml so we can insert new deps into it

compiler-cli/src/build.rs

@@ -17,7 +17,7 @@ use crate::{
 
 pub fn download_dependencies(telemetry: impl Telemetry) -> Result<Manifest> {
     let paths = crate::find_project_paths()?;
-    crate::dependencies::download(&paths, telemetry, None, Vec::new(), UseManifest::Yes)
+    crate::dependencies::download(&paths, telemetry, None, Vec::new(), UseManifest::Yes, false)
 }
 
 pub fn main(options: Options, manifest: Manifest) -> Result<Built> {