Update default PHP version to 8.2

[wojtekn]

Related issues

• Fixes https://github.com/Automattic/dotcom-forge/issues/10194

Proposed Changes

• I propose to update the default PHP version to 8.2. The 8.1 no longer gets security upgrades, so 8.2 should be considered as the minimum version that should be used for the WP site.

Testing Instructions

1. Create a Studio site
2. Confirm it uses PHP 8.2 by default
3. Confirm site works e.g. WP Admin and frontend loads fine

Pre-merge Checklist

• Have you checked for TypeScript, React or other console errors?

[sejas]

I confirm the new created sites use the PHP 8.2
Existing sites use the former PHP version, in my case 8.0.

Code changes look clean. We are still using 8.0 in some tests but that seems valid and tests pass correctly.

The new site with PHP 8.2 works as expected and feels faster.

[ivan-ottinger]

The proposed changes look good and a new site created is using PHP version 8.2 by default now.

I haven't observed any issues. The site and their WP Admin is loading correctly, similarly as Antonio observed.

[wojtekn]

Thanks for review @sejas and @ivan-ottinger !