Update validators dependency to 0.3

[premtsd-code]

What

• Updates utopia-php/validators from 0.2.* to 0.3.*
• Aligns the package PHP constraint and CI matrix with validators 0.3 (>=8.5)

Why

Cloud main now uses validators 0.3, so WAF must allow the same dependency version.

Tests

• composer validate --strict --no-interaction
• php vendor/laravel/pint/builds/pint --test
• php vendor/phpstan/phpstan/phpstan analyse -c phpstan.neon --memory-limit 512M
• composer test

[greptile-apps]

Greptile Summary

This PR updates utopia-php/validators from 0.2.* to 0.3.* and aligns the package's PHP minimum constraint and CI matrix with the new dependency requirement of PHP ≥8.5.

• composer.json: utopia-php/validators bumped to 0.3.*, PHP constraint raised from >=8.2 to >=8.5.
• composer.lock: Regenerated to pin validators at 0.3.0 (which itself declares php: ">=8.5") and update the platform entry.
• .github/workflows/test.yml: CI matrix updated from ['8.2', '8.3', '8.4', '8.5'] to ['8.5', '8.6'], removing PHP versions that no longer satisfy the dependency constraint.

Confidence Score: 5/5

Straightforward dependency version bump with all three changed files (composer.json, composer.lock, CI matrix) in full agreement.

All changes are consistent: the PHP minimum, the validators version constraint, the lock file pin, and the CI matrix all align on PHP ≥8.5 and validators 0.3. The WAF's sole use of the validators package (Conditions extends Validator) relies only on the stable base-class interface (getDescription, isArray, isValid, getType), which is unchanged between 0.2 and 0.3.

No files require special attention.

Important Files Changed

Filename	Overview
composer.json	Bumps utopia-php/validators to 0.3.* and raises the PHP minimum to >=8.5, matching the dependency's own constraint.
composer.lock	Lock file regenerated to pin utopia-php/validators at 0.3.0 and update the platform PHP constraint accordingly.
.github/workflows/test.yml	CI matrix trimmed to ['8.5', '8.6']; older PHP versions dropped since validators 0.3 requires PHP >=8.5.

_{Reviews (2): Last reviewed commit: "Update validators dependency to 0.3" | Re-trigger Greptile}