feat: add "dormant" user state (#8644)

coderd/database/queries/users.sql

@@ -250,3 +250,15 @@ SET
 WHERE
 	id = $1
 RETURNING *;
+
+
+-- name: UpdateInactiveUsersToDormant :many
+UPDATE
+    users
+SET
+    status = 'dormant'::user_status,
+	updated_at = @updated_at
+WHERE
+    last_seen_at < @last_seen_after :: timestamp
+    AND status = 'active'::user_status
+RETURNING id, email, last_seen_at;