maas.py: Add missing status ids

Status ID list synced from MaaS 2.3 [1].

[1] https://github.com/maas/maas/blob/2.3/src/maasserver/\
    migrations/builtin/maasserver/0106_testing_status.py#L25

Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
diff --git a/_modules/maas.py b/_modules/maas.py
index e279b70..1df4698 100644
--- a/_modules/maas.py
+++ b/_modules/maas.py
@@ -52,7 +52,10 @@
     (9, 'Deploying'), (6, 'Deployed'), (7, 'Retired'), (8, 'Broken'),
     (11, 'Failed deployment'), (12, 'Releasing'),
     (13, 'Releasing failed'), (14, 'Disk erasing'),
-    (15, 'Failed disk erasing')])
+    (15, 'Failed disk erasing'), (16, 'Rescue mode'),
+    (17, 'Entering rescue mode'), (18, 'Failed to enter rescue mode'),
+    (19, 'Exiting rescue mode'), (20, 'Failed to exit rescue mode'),
+    (21, 'Testing'), (22, 'Failed testing')])
 
 
 def _format_data(data):