[TEST] Add "ne" as an unsupported SimpleKdc locale (#32700)

SimpleKdcServer cannot handle some locales, so we explicitly avoid
using them in tests.
Adding "ne" (Nepali) to that list.

x-pack/plugin/security/src/test/java/org/elasticsearch/xpack/security/authc/kerberos/KerberosTestCase.java

@@ -71,6 +71,7 @@ public abstract class KerberosTestCase extends ESTestCase {
         unsupportedLocaleLanguages.add("fa");
         unsupportedLocaleLanguages.add("ks");
         unsupportedLocaleLanguages.add("ckb");
+        unsupportedLocaleLanguages.add("ne");
     }
 
     @BeforeClass