Update facades for 2.9 release

The following updates the facades to prevent spurious warnings about
missing facades. Although it logs, because nothing has been coded to the
facades we can safely add them without any consequence.

Author: SimonRichardson

juju/client/connection.py

@@ -29,13 +29,17 @@
     'Backups': {'versions': [1, 2]},
     'Block': {'versions': [2]},
     'Bundle': {'versions': [1, 2, 3]},
+    'CharmHub': {'versions': [1]},
     'CharmRevisionUpdater': {'versions': [2]},
     'Charms': {'versions': [2]},
     'Cleaner': {'versions': [2]},
     'Client': {'versions': [1, 2]},
     'Cloud': {'versions': [1, 2, 3, 4, 5]},
     'CAASAdmission': {'versions': [1]},
+    'CAASApplication': {'versions': [1]},
+    'CAASApplicationProvisioner': {'versions': [1]},
     'CAASFirewaller': {'versions': [1]},
+    'CAASFirewallerEmbedded': {'versions': [1]},
     'CAASOperator': {'versions': [1]},
     'CAASAgent': {'versions': [1]},
     'CAASOperatorProvisioner': {'versions': [1]},