[PNE-7426] Expose Project.archived.

Allow users to view the archive status of a project.

Author: anoto-moniz

src/citrine/resources/project.py

@@ -77,6 +77,8 @@ class Project(Resource['Project']):
     """str: Status of the project."""
     created_at = properties.Optional(properties.Datetime(), 'created_at')
     """int: Time the project was created, in seconds since epoch."""
+    archived = properties.Optional(properties.Boolean, 'archived')
+    """bool: Whether the project is archived."""
     _team_id = properties.Optional(properties.UUID, "team.id", serializable=False)
 
     def __init__(self,