Merge upstream libjuju

Merge upstream libjuju (bug fixes)

Change-Id: Ia28b8a0ea2168a4df74823e8493c650491afb695
Signed-off-by: Adam Israel <adam.israel@canonical.com>
diff --git a/modules/libjuju/setup.py b/modules/libjuju/setup.py
index 67e3707..7134677 100644
--- a/modules/libjuju/setup.py
+++ b/modules/libjuju/setup.py
@@ -34,8 +34,9 @@
         'pyRFC3339>=1.0,<2.0',
         'pyyaml>=3.0,<=4.2',
         'theblues>=0.3.8,<1.0',
-        'websockets>=4.0,<7.0',
+        'websockets>=7.0,<8.0',
         'paramiko>=2.4.0,<3.0.0',
+        'pyasn1>=0.4.4',
     ],
     include_package_data=True,
     maintainer='Juju Ecosystem Engineering',