[TypeDeclaration] Add NarrowBoolDocblockReturnTypeRector #33040

Job	Run time
Commented Code	20s
Run with Space in Directory	16s
Preload php-parser Order	20s
Validate rule definitions	20s
Check no "*.php" files in rules Fixture directory	22s
Run StructArmed	17s
PHP Linter	20s
Check fixture classes are different to nodes	21s
Active Classes	24s
Finalize classes	19s
Avoid duplicate short class names	15s
Check before/after test fixture on no-changes	22s
Compatible PHPStan versions	20s
Composer Validate	19s
Help and Version	19s
PHPStan	53s
	5m 47s

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