Support PHP 8.4

[nojimage]

• fixes Twitter\Text\Configuration::__construct(): Implicitly marking parameter $config as nullable is deprecated, the explicit nullable type must be used instead #48

[Copilot]

Pull request overview

This PR adds support for PHP 8.4 by updating type hints to use modern nullable syntax, updating dependencies, and modernizing the CI configuration.

Key Changes:

• Updated type hints across multiple classes to use nullable syntax (?Type) instead of docblock-only type hints
• Updated CI workflow to test PHP versions 7.4 through 8.5, with PHP 8.4 as the default for coverage and code style checks
• Updated dependencies to support newer versions of symfony/yaml and twitter/twitter-text

Reviewed changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
tests/bootstrap.php	Removed deprecated E_STRICT constant from error reporting
lib/Twitter/Text/Validator.php	Added nullable type hints and updated return type annotations to use self
lib/Twitter/Text/Parser.php	Added nullable type hints and updated return type annotations to use self
lib/Twitter/Text/HitHighlighter.php	Added nullable type hints and updated return type annotations to use self
lib/Twitter/Text/Extractor.php	Updated return type annotation to use self
lib/Twitter/Text/Configuration.php	Added nullable type hints, updated return type annotations to use self, and changed instantiation to use self
lib/Twitter/Text/Autolink.php	Added nullable type hints and updated return type annotations to use static
composer.json	Updated symfony/yaml and twitter/twitter-text version constraints
.github/workflows/ci.yml	Updated to test PHP 8.3-8.5, modernized GitHub Actions, and improved CI configuration

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.