feat: add comment

Signed-off-by: kjuulh <contact@kjuulh.io>

crates/flux-releaser/src/app/infra/grpc.rs

@@ -10,6 +10,7 @@ pub type FluxReleaserGrpcClient = Arc<Mutex<FluxReleaserClient<Channel>>>;
 pub async fn new_client(registry: impl Into<String>) -> anyhow::Result<FluxReleaserGrpcClient> {
     let registry: String = registry.into();
 
+    // Workaround: https://github.com/algesten/ureq/issues/765#issuecomment-2282921492
     static INIT: std::sync::Once = std::sync::Once::new();
 
     INIT.call_once(|| {