cron: log and capture exceptions, do not create logged errors (#88783)

tests/test_publisher.py

@@ -541,6 +541,7 @@ def test_cron_command_job_exception(settings):
 
     with mock.patch('wcs.publisher.WcsPublisher.register_cronjobs', register_test_cronjobs):
         get_publisher_class().cronjobs = []
+        clear_log_files()
         call_command('cron', job_name='job1', domain='example.net')
         assert get_logs('example.net') == [
             'start',