Update .NET 9 runtime for single machine CI job

Author: jjonescz

eng/pipelines/test-windows-job-single-machine.yml

@@ -33,7 +33,7 @@ jobs:
       displayName: 'Install .NET 9 Runtime'
       inputs:
         packageType: runtime
-        version: 9.0.0-preview.3.24172.9
+        version: 9.0.0-rc.2.24473.5
         includePreviewVersions: true
         installationPath: '$(Build.SourcesDirectory)/.dotnet'