[secrets_new] In debug mode, on raise notfound

gestion/secrets_new.py

@@ -108,6 +108,7 @@ def get(name):
         except SecretNotFound as exc:
             notfound_error = notfound_error or exc
         except SecretForbidden:
+            if not os.getenv('DBG_SECRETS'):
                 logger.critical('...and that failed (Forbidden).')
                 raise