test(rust-sdk): loosen nested-scope liveness timeout to avoid Windows CI flake (#2093)

max_inflight_components_allows_nested_scope_with_single_permit is a pure
liveness check: with a single permit, nested scopes must not deadlock. The
tokio::time::timeout only exists to convert a genuine deadlock-hang into a
failure instead of hanging the test binary.

The 8 nested components each commit LMDB write txns with fsync, serialized
through the single-writer batcher. fsync is slow on Windows CI under load,
and the 3s bound was flaking (Elapsed) there while passing everywhere else.
No engine or test-logic changed between the last green run and the failure,
and a real deadlock would hang 100% of the time on Windows rather than
intermittently — so this is timing, not a logic bug.

Raise the bound to 60s. A real deadlock never makes progress, so the
generous timeout still catches it.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: georgeh0

rust/sdk/cocoindex/tests/pipeline.rs

@@ -2230,7 +2230,14 @@ async fn max_inflight_components_limits_mount_each_concurrency() {
 async fn max_inflight_components_allows_nested_scope_with_single_permit() {
     let (app, _dir) = temp_app_with_max_inflight("nested_scope_max_inflight_one", 1).await;
 
-    tokio::time::timeout(Duration::from_secs(3), async {
+    // This is a liveness check: with a single permit, nested scopes must not
+    // deadlock (the parent releases its permit before a child acquires one).
+    // The timeout only exists to turn a genuine deadlock-hang into a failure
+    // instead of hanging the whole test binary — a real deadlock never makes
+    // progress, so a generous bound still catches it. Keep it generous: the 8
+    // nested components each commit LMDB write txns with fsync, which is slow on
+    // Windows CI under load and was flaking a tighter 3s bound (issue: Elapsed).
+    tokio::time::timeout(Duration::from_secs(60), async {
         app.update(|ctx| async move {
             for i in 0..4 {
                 let key = format!("child-{i}");