Add license identifiers

.github/actions/github-release/action.yml

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 name: 'wasmtime github releases'
 description: 'wasmtime github releases'
 inputs:

.github/actions/github-release/main.js

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
 const core = require('@actions/core');
 const path = require("path");
 const fs = require("fs");

.github/actions/github-release/package.json

@@ -1,6 +1,7 @@
 {
   "name": "wasmtime-github-release",
   "version": "0.0.0",
+  "license": "Apache-2.0 WITH LLVM-exception",
   "main": "main.js",
   "dependencies": {
     "@actions/core": "^1.9.1",