ci: reduce Playwright installation time (#38)

Author: chenjiahan

.github/workflows/test.yml

@@ -32,7 +32,7 @@ jobs:
         run: pnpm build
 
       - name: Install Playwright Browsers
-        run: pnpm exec playwright install --with-deps
+        run: pnpm exec playwright install chromium
 
       - name: Run Playwright tests
         run: pnpm test