chore: add license headers (#384)

* feat: check for license headers

* add headers

* format

plugins/updater/build.rs

@@ -1,3 +1,7 @@
+// Copyright 2019-2023 Tauri Programme within The Commons Conservancy
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-License-Identifier: MIT
+
 fn main() {
     let target_os = std::env::var("CARGO_CFG_TARGET_OS").unwrap();
     let mobile = target_os == "ios" || target_os == "android";

plugins/updater/guest-js/index.ts

@@ -1,3 +1,7 @@
+// Copyright 2019-2023 Tauri Programme within The Commons Conservancy
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-License-Identifier: MIT
+
 import { invoke, Channel } from "@tauri-apps/api/tauri";
 
 interface CheckOptions {

plugins/updater/src/commands.rs

@@ -1,3 +1,7 @@
+// Copyright 2019-2023 Tauri Programme within The Commons Conservancy
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-License-Identifier: MIT
+
 use crate::{PendingUpdate, Result, UpdaterExt};
 
 use http::header;

plugins/updater/src/config.rs

@@ -1,3 +1,7 @@
+// Copyright 2019-2023 Tauri Programme within The Commons Conservancy
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-License-Identifier: MIT
+
 use serde::{Deserialize, Deserializer};
 use url::Url;
 

plugins/updater/src/lib.rs

@@ -1,3 +1,7 @@
+// Copyright 2019-2023 Tauri Programme within The Commons Conservancy
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-License-Identifier: MIT
+
 use tauri::{
     plugin::{Builder as PluginBuilder, TauriPlugin},
     Manager, Runtime,