Set Apache license to Update Library

libraries/Update/src/HttpsOTAUpdate.h

@@ -1,3 +1,11 @@
+/* OTA task
+
+   This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+   Unless required by applicable law or agreed to in writing, this
+   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+   CONDITIONS OF ANY KIND, either express or implied.
+*/
 #ifndef HTTPSOTAUPDATE_H
 #define HTTPSOTAUPDATE_H
 #include "esp_http_client.h"

libraries/Update/src/Update.h

@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #ifndef ESP32UPDATER_H
 #define ESP32UPDATER_H
 

libraries/Update/src/Updater.cpp

@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #include "Update.h"
 #include "Arduino.h"
 #include "spi_flash_mmap.h"