copr-be: copr-ping: logging to stdout

roles/copr/backend/templates/copr-ping-check.py.j2

@@ -18,7 +18,11 @@ EXIT_WARN = 1
 EXIT_CRITICAL = 2
 EXIT_UNKNOWN = 3
 
-logging.basicConfig(level=logging.INFO, format='%(message)s')
+logging.basicConfig(
+    level=logging.INFO,
+    format='%(message)s',
+    handlers=[logging.StreamHandler(sys.stdout)],
+)
 LOG = logging.getLogger()