bump to PHP 8.3 + update deps + allow it in CI #32046

Job	Run time
Run with Space in Directory	16s
PHPStan	1m 28s
Help and Version	18s
Check before/after test fixture on no-changes	17s
Finalize classes	18s
Active Classes	20s
Composer Validate	14s
Detect composer dependency issues	15s
Compatible PHPStan versions	16s
Avoid duplicate short class names	16s
Commented Code	14s
Preload php-parser Order	18s
Check no "*.php" files in rules Fixture directory	16s
PHP Linter	22s
Check fixture classes are different to nodes	14s
	5m 22s

Provide feedback