chore(deps-dev): upgrade Prettier to v3

[G-Rath]

Checks

• I have read the contributing guidelines.

Changes

• Upgrades Prettier to v3
• Removes unused eslint-plugin-prettier
• Rewrites tools/generate-configs to be async

Context

Prettier v3 removes its sync API, so to upgrade we now have to use promises

Relates to #826 and #855

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.28%. Comparing base (93a6ab9) to head (e6cc9dd).
Report is 21 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #932      +/-   ##
==========================================
+ Coverage   96.23%   96.28%   +0.04%     
==========================================
  Files          44       44              
  Lines        2419     2449      +30     
  Branches     1000     1018      +18     
==========================================
+ Hits         2328     2358      +30     
  Misses         91       91              

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

[Belco90]

@G-Rath can you resolve the conflicts with main? So I merge this one before other changes.

[github-actions]

🎉 This PR is included in version 6.3.3 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀