Update dependency phpstan/phpstan to v1.12.3

This MR contains the following updates:

Package	Type	Update	Change
phpstan/phpstan	require-dev	patch	1.12.2 -> 1.12.3

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Release Notes

phpstan/phpstan (phpstan/phpstan)

v1.12.3

Compare Source

Improvements 🔧

• PHPStan Pro: debug corrupted PHAR signature message (https://github.com/phpstan/phpstan-src/commit/9815bbba4535b0605aef5b5cb9dd64a63bc44b1f)

Bugfixes 🐛

• Revert "Fix phar.yml workflow" (https://github.com/phpstan/phpstan-src/commit/6973519742ab804f57885c099b74971f465c7b24), #​11638
• Refactor ArrayFilterFunctionReturnTypeReturnTypeExtension and support first-class callable (#​3329), #​11337, thanks @​takaram!
• Prevent resolving conditional types in callable param/return types (#​3405), #​11472, thanks @​rvanvelzen!
• Fix wrongly convertion of list<T> to array{T} (#​3412), #​11642, thanks @​staabm!
• Fix internal error (https://github.com/phpstan/phpstan-src/commit/052f6b130f53ad50f571b81d4d468b0b0026c2fd), #​11649
• Missing typehints should be consistently checked on level 6 (https://github.com/phpstan/phpstan-src/commit/e3e80f6c9c246d13e41188d508f0f4afb631b9af), #​11657

Function signature fixes 🤖

• Don't prevent checking for curl_init() false returns (#​3409), #​11640, thanks @​tscni!
• Update phpstorm-stubs and patch (#​3393), thanks @​VincentLanglet!

Internals 🔍

• The COMPOSER_ROOT_VERSION hack should no longer be necessary (#​3414)
• Add non regression test (#​3416), #​4960, thanks @​VincentLanglet!
• Add non regression test (#​3415), #​10499, thanks @​VincentLanglet!

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