Kryo5 deserialization lost Locale script field

**Describe the bug**
**java.util.Locale** **script** field in the is missing after deserialization with Kryo5, when we execute below UT method. we expect to get **sr_RS_#Cyrl** but actually we get the **sr_RS** which **script** is lost

```
expected [sr_RS_#Cyrl] but found [sr_RS]
java.lang.AssertionError: expected [sr_RS_#Cyrl] but found [sr_RS]
```

**To Reproduce**
```java
@Test
public void testLocaleScript() {
Kryo kryo = new Kryo();
kryo.setRegistrationRequired(false);

Locale locale = new Locale.Builder().setLanguage("sr").setScript("Cyrl").setRegion("RS").build();

ByteArrayOutputStream baos = new ByteArrayOutputStream();
try (Output output = new Output(baos)) {
kryo.writeClassAndObject(output, locale);
}

Object deserializedLocale;
try (Input input = new Input(baos.toByteArray())){
deserializedLocale = kryo.readClassAndObject(input);
}

assertEquals(deserializedLocale.toString(), "sr_RS_#Cyrl");
}

```

**Environment:**
- OS: Windows/OSX/Ubuntu
- JDK Version: JDK17
- Kryo Version: 5.5.0