[PHP 8.4] Use DOMDocument HTML5 support when available

Problem/Motivation

We're using masterminds/html5 to support HTML5 parsing, especially in the filter system and Big Pipe. @berdir reported a performance regression (at least when profiling, less obvious when looking at raw timings when not profiling) in HTML parsing with Big Pipe.

PHP 8.4 will have native HTML5 support, so we should use that when it's available - we can put it behind a PHP version check in Drupal\Component\Utility\HTML::load(), and then drop masterminds/html5 when we require PHP 8.4 or higher (in Drupal 12).

https://wiki.php.net/rfc/domdocument_html5_parser

Steps to reproduce

Proposed resolution

Merge request link

Remaining tasks

User interface changes

API changes

Data model changes

Release notes snippet