build: 更新 wails 构建动作引用

- 将 dAppServer/wails-build-action@latest替换为 dAppServer/wails-build-action
- 此修改旨在解决特定版本冲突问题

Author: spark

.github/workflows/main.yml

@@ -32,7 +32,7 @@ jobs:
           submodules: recursive
 
       - name: Build wails
-        uses: dAppServer/wails-build-action@latest
+        uses: dAppServer/wails-build-action
         id: build
         with:
           build-name: ${{ matrix.build.name }}