build(workflow): change trigger branch from main to master and supplement workflow steps

.github/workflows/build-linux-arm-appimage.yml

@@ -3,7 +3,7 @@ name: CI 自动构建linux arm electron 包,并保存结果
 on:
   push:
     branches:
-      - main
+      - master
   repository_dispatch:
     types:
       - webhook_trigger
@@ -26,6 +26,12 @@ jobs:
 
       - name: 构建项目
         run: npm run build:h5
+      
+      - name: 构建electron之前的准备
+        run: npm run prebuild:arm:linux
+
+      - name: 构建 Electron 应用
+        run: npm run build:electron:linux
 
       - name: 上传构建结果
         uses: actions/upload-artifact@v4