try moving cross platform tests to a separate step

.github/workflows/ci.yml

@@ -57,6 +57,9 @@ jobs:
       - run: pnpm install --frozen-lockfile
       - run: pnpm playwright install ${{ matrix.e2e-browser }}
       - run: pnpm test
+      - run: pnpm test:cross-platform:dev && pnpm test:cross-platform:build
+        env:
+          KIT_CROSS_PLATFORM_TEST: '1'
       - name: Archive test results
         if: failure()
         shell: bash
@@ -101,6 +104,7 @@ jobs:
             mode: 'build'
     env:
       KIT_E2E_BROWSER: ${{matrix.e2e-browser}}
+      KIT_CROSS_PLATFORM_TEST: '1'
     steps:
       - run: git config --global core.autocrlf false
       - uses: actions/checkout@v3

package.json

@@ -4,7 +4,7 @@
 	"description": "monorepo for @sveltejs/kit and friends",
 	"private": true,
 	"scripts": {
-		"test": "pnpm test -r --filter=./packages/* --filter=!./packages/create-svelte",
+		"test": "pnpm test -r --aggregate-output --filter=./packages/* --filter=!./packages/create-svelte",
 		"test:cross-platform:dev": "pnpm run --dir packages/kit test:cross-platform:dev",
 		"test:cross-platform:build": "pnpm run --dir packages/kit test:cross-platform:build",
 		"test:vite-ecosystem-ci": "pnpm test --dir packages/kit",

packages/kit/test/apps/basics/playwright.config.js

@@ -1 +1,6 @@
-export { config as default } from '../../utils.js';
+import { config } from '../../utils.js';
+
+config.testIgnore =
+	process.env.CI && !process.env.KIT_CROSS_PLATFORM_TEST ? ['test/cross-platform/**'] : [];
+
+export default config;