Fix tests

Author: Hind-M

quetz/repo_data.py

@@ -22,7 +22,7 @@ def export(dao, channel_name, subdir):
         ):
             data = json.loads(info)
             data['time_modified'] = int(time_modified.timestamp())
-            if data['timestamp'] > MAX_CONDA_TIMESTAMP:
+            if 'timestamp' in data and data['timestamp'] > MAX_CONDA_TIMESTAMP:
                 # Convert timestamp from milliseconds to seconds
                 data['timestamp'] //= 1000
             if format == db_models.PackageFormatEnum.conda: