ci: run test suite on windows

[danielroe]

🔗 Linked issue

❓ Type of change

• 📖 Documentation (updates to the documentation or readme)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

This PR aims to run tests on Windows in CI, to avoid potential regressions.

related: nuxt/ecosystem-ci#15

[cloudflare-workers-and-pages]

Deploying nuxt-image with    Cloudflare Pages

Latest commit:	1a2d1f9
Status:	✅  Deploy successful!
Preview URL:	https://e23e430a.nuxt-image.pages.dev
Branch Preview URL:	https://ci-windows.nuxt-image.pages.dev

View logs

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.38%. Comparing base (69bfe03) to head (1a2d1f9).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1542   +/-   ##
=======================================
  Coverage   63.38%   63.38%           
=======================================
  Files          79       79           
  Lines        3608     3608           
  Branches      407      407           
=======================================
  Hits         2287     2287           
  Misses       1292     1292           
  Partials       29       29           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.