Fix ContainerCreateDeleteWithSameNameTest.bulk - increase indexing delay to 1000ms

Test still fails intermittently with 8/10 items despite previous 500ms delay.

Root cause: Indexing lag in CI can exceed 500ms for bulk operations on high-throughput containers (10100 RU/s).

Fix: Increased delay from 500ms to 1000ms to provide adequate time for indexing to complete before querying.

Co-authored-by: kushagraThapar <14034156+kushagraThapar@users.noreply.github.com>

Author: Copilot

sdk/cosmos/azure-cosmos-tests/src/test/java/com/azure/cosmos/rx/ContainerCreateDeleteWithSameNameTest.java

@@ -632,8 +632,9 @@ public <T> void bulk(
 
                 // Add delay to ensure bulk operations are fully indexed before querying
                 // This prevents race conditions in CI where indexing may lag behind write completion
+                // Increased from 500ms to 1000ms as 500ms was still insufficient in some CI runs
                 try {
-                    Thread.sleep(500);
+                    Thread.sleep(1000);
                 } catch (InterruptedException e) {
                     // Restore the interrupt status before propagating as a RuntimeException
                     Thread.currentThread().interrupt();