Fixes a bug with validation (#12)

The validator assumed it would get a dictionary, this is not the case.

Author: t-persson

src/etos_api/lib/validator.py

@@ -178,4 +178,5 @@ def validate(self):
         :raises ValidationError: If the suite did not validate.
         """
         downloaded_suite = self._download_suite()
-        assert Suite(**downloaded_suite)
+        for suite in downloaded_suite:
+            assert Suite(**suite)