chore: bump playwright (#568)

# Motivation

The E2E tests starts failing in the CI (see for example this
[job](https://github.com/dfinity/gix-components/actions/runs/12982647342/job/36202745642?pr=548)).

> pid=2146][err] Old Headless mode has been removed from the Chrome
binary. Please use the new Headless mode
(https://developer.chrome.com/docs/chromium/new-headless) or the
chrome-headless-shell which is a standalone implementation of the old
Headless mode (https://developer.chrome.com/blog/chrome-headless-shell).

The issue can be resolved as in NNS dapp by bumping Playwright. See PR
[#6207](dfinity/nns-dapp#6207)

# Notes

Replace PR #567

# Changes

- Bump Playwright

---------

Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>

package.json

@@ -41,7 +41,7 @@
   ],
   "devDependencies": {
     "@junobuild/config": "^0.0.14",
-    "@playwright/test": "^1.47.1",
+    "@playwright/test": "^1.50.0",
     "@sveltejs/adapter-static": "^3.0.5",
     "@sveltejs/kit": "^2.5.28",
     "@sveltejs/package": "^2.3.5",