DateTime type in ScimAttribute

Hi,
I tried to create an extension with an attribute of DateTime type. The example on the readme.md file shows it can be set using "type" in ScimAttribute as follows:
```java
@ScimAttribute(
description="A Boolean value indicating the User's administrative status.",
type=Type.BOOLEAN
)
```
But ScimAttribute does not seem to support "type". I tried using java.util.Date for DateTime without setting the type in ScimAttribute. But in response, the DateTime value is displayed as the fastTime value as shown below rather than in xsd:dateTime format.
```json
"urn:mem:params:scim:schemas:extension:DateExtension": {
"dateModified": 1704302059063,
"dateCreated": 1704302059063
}
```
What's the right way to add a DateTime attribute? Thanks