Move download counting to worker (#306)

* Move download counting to worker

* Run `cargo sqlx prepare`

* Format & some Clippy fixes

src/routes/mod.rs

@@ -87,6 +87,7 @@ pub fn versions_config(cfg: &mut web::ServiceConfig) {
         web::scope("version")
             .service(versions::version_get)
             .service(versions::version_delete)
+            .service(versions::version_count_patch)
             .service(version_creation::upload_file_to_version)
             .service(versions::version_edit),
     );