Use official releases for expert binary (#109)

[Say Hello to 0.1.0](https://expert-lsp.org/say-hello-to-0.1.0/)

Author: AlternateRT

src/language_servers/expert.rs

@@ -83,7 +83,7 @@ impl Expert {
             "elixir-lang/expert",
             zed::GithubReleaseOptions {
                 require_assets: true,
-                pre_release: true,
+                pre_release: false,
             },
         ) {
             Ok(release) => release,
@@ -127,48 +127,7 @@ impl Expert {
             .find(|asset| asset.name == asset_name)
             .ok_or_else(|| format!("no asset found matching {:?}", asset_name))?;
 
-        const CHECKSUM_ASSET_NAME: &str = "expert_checksums.txt";
-
-        let checksum_asset = release
-            .assets
-            .iter()
-            .find(|asset| asset.name == CHECKSUM_ASSET_NAME)
-            .ok_or_else(|| format!("no checksums file found matching {:?}", CHECKSUM_ASSET_NAME))?;
-
-        let checksums_dir = format!("{}-checksums", Self::LANGUAGE_SERVER_ID);
-        fs::create_dir_all(&checksums_dir)
-            .map_err(|e| format!("failed to create directory: {e}"))?;
-
-        let checksums_path = format!("{}/{}", checksums_dir, CHECKSUM_ASSET_NAME);
-
-        zed::download_file(
-            &checksum_asset.download_url,
-            &checksums_path,
-            zed::DownloadedFileType::Uncompressed,
-        )
-        .map_err(|e| format!("failed to download checksums file: {e}"))?;
-
-        let checksums_content = fs::read_to_string(&checksums_path)
-            .map_err(|e| format!("failed to read checksums file: {e}"))?;
-
-        fs::remove_dir_all(&checksums_dir)
-            .map_err(|e| format!("failed to remove checksums directory: {e}"))?;
-
-        let truncated_checksum = checksums_content
-            .lines()
-            .find(|line| line.ends_with(&asset_name))
-            .and_then(|line| line.split_whitespace().next())
-            .ok_or_else(|| format!("checksum not found for {}", asset_name))?
-            .chars()
-            .take(8)
-            .collect::<String>();
-
-        let version_dir = format!(
-            "{}-{}-{}",
-            Self::LANGUAGE_SERVER_ID,
-            release.version,
-            truncated_checksum,
-        );
+        let version_dir = format!("{}-{}", Self::LANGUAGE_SERVER_ID, release.version);
         fs::create_dir_all(&version_dir).map_err(|e| format!("failed to create directory: {e}"))?;
 
         let binary_path = format!("{}/{}", version_dir, Self::LANGUAGE_SERVER_ID);