Add PHP 8.2 to testing matrix

[Copilot]

This PR adds PHP 8.2 to the GitHub Actions testing matrix to ensure the package is properly tested against all supported PHP versions.

Background

The composer.json currently specifies "php": "^8.2" as a requirement, indicating that the package supports PHP 8.2 and above. However, the GitHub Actions workflow was only testing against PHP 8.3 and 8.4, leaving PHP 8.2 untested despite being officially supported.

Changes

• Updated .github/workflows/tests.yml to include PHP 8.2 in the testing matrix
• The workflow now tests against PHP versions: 8.2, 8.3, and 8.4

Testing

This change ensures that:

• All supported PHP versions are covered by CI
• Potential compatibility issues with PHP 8.2 will be caught early
• Users can have confidence that the package works correctly on PHP 8.2

The change is minimal and only affects the CI configuration without modifying any application code.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• https://api.github.com/repos/phpstan/phpstan/zipball/d618573eed4a1b6b75e37b2e0b65ac65c885d88e
  • Triggering command: /usr/bin/php8.3 -n -c /tmp/DilWxz /usr/bin/composer install --prefer-dist --no-progress (http block)
• https://api.github.com/repos/symfony/polyfill-intl-grapheme/zipball/380872130d3a5dd3ace2f4010d95125fde5d5c70
  • Triggering command: /usr/bin/php8.3 -n -c /tmp/DilWxz /usr/bin/composer install --prefer-dist --no-progress (http block)
• https://api.github.com/repos/symfony/polyfill-intl-normalizer/zipball/3833d7255cc303546435cb650316bff708a1c75c
  • Triggering command: /usr/bin/php8.3 -n -c /tmp/DilWxz /usr/bin/composer install --prefer-dist --no-progress (http block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

could u plz add php 8.2 to the tests matrix aswell lol.

Created from VS Code via the [GitHub Pull Request](https://marketplace.visualstudio.com/items?itemName=GitHub.vscode-pull-request-github) extension.

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