Inconsistency in `DatasetVersionInfo` model? (Date vs string)

[vera]

I noticed that in the DatasetVersionInfo model, the timestamps use inconsistent types:

dataverse-client-javascript/src/datasets/domain/models/Dataset.ts

Lines 25 to 32 in 0043ddd

	createTime: Date
	/**
	* The timestamp of the last update to this dataset version.
	* Format: ISO 8601 string (e.g., "2023-06-01T12:34:56Z").
	* Used for optimistic concurrency control to detect concurrent updates.
	*/
	lastUpdateTime: string
	releaseTime?: Date

releaseTime and createTime are represented as Date objects, while lastUpdateTime is represented as an ISO 8601 string and not transformed into a Date object:

dataverse-client-javascript/src/datasets/infra/repositories/transformers/datasetTransformers.ts

Lines 237 to 239 in 0043ddd

	createTime: new Date(versionPayload.createTime),
	lastUpdateTime: versionPayload.lastUpdateTime,
	releaseTime: new Date(versionPayload.releaseTime),

The return values from the Dataverse API for retrieving a dataset version are all consistently ISO 8601 strings:

I was wondering what the reason for this is, or whether this inconsistency should be cleaned up? (If so, I'd be open to opening a PR for that)