Add PHP 8.4 support (testing)

[crazywhalecc]

What does this PR do?

Add PHP 8.4 support (testing), fixes #547 .

Problems to be solved

• PHP 8.4 has removed imap extension. For PHP 8.4, we need to download from PECL. (May conflict with existing extension type)
• Depends on the latest phpmicro patches, some old cache does not build successfully.
• Extensions not tested in production environments

Checklist before merging

If your PR involves the changes mentioned below and completed the action, please tick the corresponding option.
If a modification is not involved, please skip it directly.

• If it's an extension or dependency update, make sure adding related extensions in src/global/test-extensions.php.
• If you changed the behavior of static-php-cli, update docs in ./docs/.
• If you updated config/xxx.json content, run bin/spc dev:sort-config xxx.