Pass SSL options to swiftclient explicitly

Contrary to most other OpenStack's python-*clients, when being passed a
keysotneauth.Session swiftclient uses it only to find the Swift
endpoint and get itself a token, but does not use this session object
for actually connecting to Swift API afterwards.

This is why one still has to explicitly pass SSL-related options to
swiftclient when Swift API is behind SSL itself,
as those options encapsulated in the Session object won't in fact be used.

Change-Id: I1cce4f81e7fb80e4f75b8e42a9227ad909aea536

heat_tempest_plugin/services/clients.py

@@ -174,6 +174,8 @@ class ClientManager(object):
         args = {
             'auth_version': self.auth_version,
             'session': self.identity_client.session,
+            'cacert': self.ca_file,
+            'insecure': self.insecure,
             'os_options': {'endpoint_type': self.conf.endpoint_type,
                            'region_name': self.conf.region,
                            'service_type': 'object-store'},