Filter LSP github releases that have no assets to properly download L…

…SP servers (#7189)

Fixes #7183

Release Notes:

- Filter lsp github releases that have no assets ([7189](#7183))

crates/util/src/github.rs

@@ -68,6 +68,6 @@ pub async fn latest_github_release(
 
     releases
         .into_iter()
-        .find(|release| release.pre_release == pre_release)
+        .find(|release| !release.assets.is_empty() && release.pre_release == pre_release)
         .ok_or(anyhow!("Failed to find a release"))
 }