Wrong JsonProperty for Macro updatedAt field

[jellevangompel]

Describe the bug
The JsonProperty on the method getUpdatedAt() for the class org.zendesk.client.v2.model.Macro is "deleted_at". This is not a valid json value Zendesk spec, which causes the field to be null.

Extract from Macro class (line 70-73):
@JsonProperty("deleted_at")
public Date getUpdatedAt() {
return updatedAt;
}

Expected behavior
The JsonProperty should be "updated_at"

[jellevangompel]

pull request #369