Add KubernetesProbesOptionsValidator to ensure different ports for probes

[makazeu]

Add the KubernetesProbesOptionsValidator to check if the 3 Kubernetes probes (liveness, startup, readiness) use different ports.

Context

If we set same ports for Kubernetes probes, it will cause issue below:

        builder.Services.AddKubernetesProbes(options =>
        {
            options.LivenessProbe.TcpPort = 2305;
            options.StartupProbe.TcpPort = 2305;
            options.ReadinessProbe.TcpPort = 2305;
        });

fail: Microsoft.Extensions.Diagnostics.Probes.TcpEndpointProbesService[1466257416]
      Error updating health status through TCP endpoint
      System.Net.Sockets.SocketException (10048): Only one usage of each socket address (protocol/network address/port) is normally permitted.
         at System.Net.Sockets.Socket.UpdateStatusAfterSocketErrorAndThrowException(SocketError error, Boolean disconnectOnFailure, String callerName)
         at System.Net.Sockets.Socket.DoBind(EndPoint endPointSnapshot, SocketAddress socketAddress)
         at System.Net.Sockets.Socket.Bind(EndPoint localEP)
         at System.Net.Sockets.TcpListener.Start(Int32 backlog)
         at Microsoft.Extensions.Diagnostics.Probes.TcpEndpointProbesService.UpdateHealthStatusAsync(CancellationToken cancellationToken)

Microsoft Reviewers: Open in CodeFlow

[RussKie]

@mobratil please triage and review

[RussKie]

Thank you