fix: deploy test

Author: keepview

Diff for: packages/server/core/src/plugins/render/render.ts

@@ -358,7 +358,8 @@ async function getRenderMode(
       return 'data';
     }
     const fallbackHeaderValue: string | null =
-      req.headers.get(fallbackHeader) || nodeReq?.headers[fallbackHeader];
+      req.headers.get(fallbackHeader) ||
+      (nodeReq?.headers[fallbackHeader] as string | null);
     if (forceCSR && (query.csr || fallbackHeaderValue)) {
       if (query.csr) {
         await onFallback?.('query');

Diff for: packages/solutions/app-tools/src/plugins/deploy/platforms/vercel.ts

@@ -102,7 +102,7 @@ export const createVercelPreset: CreatePreset = (
         });
 
         await fse.writeJSON(path.join(funcsDirectory, '.vc-config.json'), {
-          runtime: 'nodejs20.x',
+          runtime: 'nodejs16.x',
           handler: 'index.js',
           launcherType: 'Nodejs',
           shouldAddHelpers: false,