Require PHP 8.3 and restore Pest v4; update CI matrix

[lucianotonet]

Motivation

• The project should use Pest v4 which requires PHP 8.3, and the package requirements must match the runtime.
• CI must keep test-related packages in require-dev when installing dependencies so orchestra/testbench stays scoped correctly.

Description

• Updated composer.json to require PHP ^8.3 and set pestphp/pest to ^4.3.
• Relaxed orchestra/testbench in require-dev to allow ^9.0|^10.0 for Laravel 11/12 compatibility.
• Updated .github/workflows/tests.yml to run only on PHP 8.3 in the matrix and to call composer require ... --dev so testbench remains in require-dev during CI.

Testing

• No automated tests were executed as part of this change.

---

Codex Task

[coderabbitai]

Important

Review skipped

Auto reviews are disabled on base/target branches other than the default branch.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

• 🔍 Trigger a full review

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch codex/fix-php-version-compatibility-in-workflows

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}