Adjust EKS add-on integration test service count expectations

[jefchien]

Description of changes:

• Changed expected windows service counts due to Open Application Signals ports on CWAgent only when enabled #230
  • This results in the windows container insight's service and headless service no longer opening ports and therefore not being created due to

    amazon-cloudwatch-agent-operator/internal/manifests/collector/service.go

    Lines 87 to 92 in 74fb8a1

    	// if we have no ports, we don't need a service
    	if len(ports) == 0 {
    	params.Log.V(1).Info("the instance's configuration didn't yield any ports to open, skipping service", "instance.name", params.OtelCol.Name, "instance.namespace", params.OtelCol.Namespace)
    	return nil, nil
    	}

• Removed k8s v1.23 from the test matrix
  • EKS no longer supports k8s v1.23 (https://docs.aws.amazon.com/eks/latest/userguide/kubernetes-versions.html)

Test run: https://github.com/aws/amazon-cloudwatch-agent-operator/actions/runs/11450004831

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