Pass plugin configuration to koji ClientSession

Pass plugin section configuration to `koji.ClientSession` as option,
allowing to pass options like `no_ssl_verify = True` (useful for koji
private instances running with self signed certificates).

Signed-off-by: Sandro Bonazzola <sbonazzo@redhat.com>

did/plugins/koji.py

@@ -59,7 +59,7 @@ def __init__(self, option, name=None, parent=None, user=None):
         except KeyError:
             raise did.base.ReportError(
                 "No koji url set in the [{0}] section".format(option))
-        server = koji.ClientSession(url)
+        server = koji.ClientSession(url, opts=config)
         try:
             user = server.getUser(config['login'], strict=True)
         except KeyError: