build: bump playwright (#257)

# Motivation

Bump Playwright.

# Note

I tried to upgrade Playwright v1.37 in July but, it hands forever in the
CI.

This was resolved in issue:
microsoft/playwright#24071

Author: peterpeterparker

package-lock.json

@@ -37,7 +37,7 @@
   ],
   "devDependencies": {
     "@junobuild/analytics": "^0.0.9",
-    "@playwright/test": "^1.32.2",
+    "@playwright/test": "^1.39.0",
     "@sveltejs/adapter-static": "^2.0.2",
     "@sveltejs/kit": "^1.18.0",
     "@sveltejs/package": "^2.0.2",