Add a sleep delay

Signed-off-by: Antoine Toulme <[email protected]>

Author: atoulme

fabric-chaincode-shim/src/test/java/org/hyperledger/fabric/traces/impl/OpenTelemetryTracesProviderTest.java

@@ -134,6 +134,7 @@ public void onCompleted() {
 
         chaincodeSupportClient.start(itm, requestObserver);
         wait.get(5, TimeUnit.SECONDS);
+        Thread.sleep(5000);
         List<SpanData> spans = TestSpanExporterProvider.SPANS;
         assertThat(spans.isEmpty()).isFalse();