添加构建依赖，添加多平台测试任务

package.json

@@ -4,7 +4,8 @@
   "description": "GitHub Action that sends a WeChat Work notification.",
   "private": true,
   "scripts": {
-    "test": "npm test"
+    "test": "npm test",
+    "build": "ncc build entrypoint.js"
   },
   "repository": {
     "type": "git",
@@ -24,8 +25,12 @@
   },
   "homepage": "https://github.com/chf007/action-wechat-work#readme",
   "dependencies": {
+    "@vercel/ncc": "^0.28.5",
     "axios": "^0.21.1",
     "lodash": "^4.17.21",
     "yargs": "^16.2.0"
+  },
+  "devdependencies": {
+    "@vercel/ncc": "^0.28.5"
   }
 }