fix: copy .npmrc into docker container

[zhullyb]

We need set shamefully-hoist to true ( which .npmrc helps us done ), or node won't find dependencies

log below:
node:internal/modules/esm/resolve:844
throw new ERR_MODULE_NOT_FOUND(packageName, fileURLToPath(base), null);
^

Error [ERR_MODULE_NOT_FOUND]: Cannot find package 'send' imported from /tmp/t/dist/server/entry.mjs
at packageResolve (node:internal/modules/esm/resolve:844:9)
at moduleResolve (node:internal/modules/esm/resolve:901:20)
at defaultResolve (node:internal/modules/esm/resolve:1121:11)
at ModuleLoader.defaultResolve (node:internal/modules/esm/loader:396:12)
at ModuleLoader.resolve (node:internal/modules/esm/loader:365:25)
at ModuleLoader.getModuleJob (node:internal/modules/esm/loader:240:38)
at ModuleWrap. (node:internal/modules/esm/module_job:85:39)
at link (node:internal/modules/esm/module_job:84:36) {
code: 'ERR_MODULE_NOT_FOUND'
}

[vercel]

@zhullyb is attempting to deploy a commit to the ddiu8081's Team Team on Vercel.

A member of the Team first needs to authorize it.

[zhullyb]

在 #448 中，我通过先将仓库中所有文件都复制到 builder 中，碰巧将 .npmrc 复制到 builder 中，解决了 pnpm install 后依赖不是平铺在 node_modules 文件夹下导致构建失败的问题，但运行时就出现了 node 找不到依赖的问题。所以应当在正式部署的容器中也引入 .npmrc 的 shamefully-hoist 属性，这样就可以解决 node 找不到依赖的问题