[synapse] More correctly disable a few tests that require manual setup (Azure#18909)

- Correct test disabling done in Azure#18833

Author: chamons

sdk/synapse/Azure.Analytics.Synapse.Artifacts/tests/SparkJobDefinitionClientLiveTests.cs

@@ -19,7 +19,7 @@ namespace Azure.Analytics.Synapse.Artifacts.Tests
     /// These tests have a dependency on live Azure services and may incur costs for the associated
     /// Azure subscription.
     /// </remarks>
-    [LiveOnly] // Requires uploaded application on associated storage (wordcount.zip sample)
+    [Ignore("Requires upload of zip from https://github.com/Azure-Samples/Synapse/tree/main/Spark/DotNET as samples/net/wordcount/wordcount.zip to associated storage.")]
     public class SparkJobDefinitionClientLiveTests : RecordedTestBase<SynapseTestEnvironment>
     {
         internal class DisposableSparkJobDefinition : IAsyncDisposable

sdk/synapse/Azure.Analytics.Synapse.Monitoring/tests/samples/Sample1_PipelineMonitoring.cs

@@ -19,7 +19,7 @@ namespace Azure.Analytics.Synapse.Monitoring.Samples
     /// </summary>
     public partial class Sample1_PipelineMonitoring : SamplesBase<SynapseTestEnvironment>
     {
-        [LiveOnly] // https://github.com/Azure/azure-sdk-for-net/issues/18832 - Fails on nightly lane due to unreproducable NRE
+        [Ignore("https://github.com/Azure/azure-sdk-for-net/issues/18832 - Fails on nightly lane due to unreproducable NRE")]
         [Test]
         public void MonitorPipelineRuns()
         {