Disable entitlements on SamlMetadataCommandTests (elastic#130949)

This is testing a CLI command, which will never run with entitlements,
so just disable them.

Resolves elastic#130598

Author: mark-vieira

x-pack/plugin/security/src/test/java/org/elasticsearch/xpack/security/authc/saml/SamlMetadataCommandTests.java

@@ -17,6 +17,7 @@
 import org.elasticsearch.core.Tuple;
 import org.elasticsearch.env.Environment;
 import org.elasticsearch.env.TestEnvironment;
+import org.elasticsearch.test.ESTestCase.WithoutEntitlements;
 import org.elasticsearch.xpack.core.security.authc.RealmSettings;
 import org.elasticsearch.xpack.core.ssl.CertParsingUtils;
 import org.hamcrest.CoreMatchers;
@@ -60,6 +61,7 @@
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
+@WithoutEntitlements
 public class SamlMetadataCommandTests extends SamlTestCase {
 
     private KeyStoreWrapper keyStore;