[Transform] Lower loglevel of 3 transform-related error messages from ERROR to WARN (#134985)

Author: przemekwitek

x-pack/plugin/transform/src/main/java/org/elasticsearch/xpack/transform/persistence/AuthorizationStatePersistenceUtils.java

@@ -130,7 +130,7 @@ public static void persistAuthState(
             },
             error -> {
                 String msg = TransformMessages.getMessage(TransformMessages.FAILED_TO_LOAD_TRANSFORM_STATE, transformId);
-                logger.error(msg, error);
+                logger.warn(msg, error);
                 listener.onFailure(error);
             }
         );

x-pack/plugin/transform/src/main/java/org/elasticsearch/xpack/transform/persistence/TransformIndex.java

@@ -213,7 +213,7 @@ static void createDestinationIndex(
                     config.getDestination().getIndex(),
                     config.getId()
                 );
-                logger.error(message, e);
+                logger.warn(message, e);
                 listener.onFailure(new RuntimeException(message, e));
             })
         );
@@ -255,7 +255,7 @@ static void setUpDestinationAliases(Client client, TransformConfig config, Actio
                     config.getDestination().getIndex(),
                     config.getId()
                 );
-                logger.error(message, e);
+                logger.warn(message, e);
                 listener.onFailure(new RuntimeException(message, e));
             })
         );