feat: add ConvertStaticToSelfRector #29966

Job	Run time
Composer Validate	17s
Compatible PHPStan versions	18s
Preload php-parser Order	18s
Run with Space in Directory	20s
Commented Code	19s
PHPStan	1m 25s
Help and Version	23s
Finalize classes	23s
Active Classes	19s
Check no "*.php" files in rules Fixture directory	22s
Detect composer dependency issues	22s
Check before/after test fixture on no-changes	22s
	5m 8s

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