ci: use Firefox for Windows E2E tests

[HiDeoo]

Description

Continuing on the effort to speed up CI, I noticed that on Windows, the E2E tests took 3 minutes to install some dependendcies before even starting to download Chrome.

After checking the Playwright core codebase, it turns out that this is due to the installation of the Server Media Foundation windows feature on Windows Server.

Altho, something I noticed is that this is only required for Chromium-based browsers.

Therefore, this PR changes the Windows E2E tests on CI to use Firefox instead of Chrome, which skips this step and immediately starts downloading Firefox before running the tests.

Before	After

This also has the added benefit of running our E2E tests on a different browser.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 4cf37f6

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[netlify]

✅ Deploy Preview for astro-starlight ready!

Name	Link
🔨 Latest commit	4cf37f6
🔍 Latest deploy log	https://app.netlify.com/projects/astro-starlight/deploys/690cce439626700007d61bad
😎 Deploy Preview	https://deploy-preview-3538--astro-starlight.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
Lighthouse	1 paths audited Performance: 100 (no change from production) Accessibility: 100 (no change from production) Best Practices: 100 (no change from production) SEO: 100 (no change from production) PWA: - View the detailed breakdown and full score reports

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[delucis]

Incredible investigation and discovery 🔥

I think we’ll need a blog post soon about all these tricks!

Thanks @HiDeoo 🙌