[PHP]: Update phpstan/phpstan requirement from 1.12.2 to 1.12.3

[dependabot[bot]]

Updates the requirements on phpstan/phpstan to permit the latest version.

Release notes

Sourced from phpstan/phpstan's releases.

1.12.3

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!

Commits

• 0fcbf19 PHPStan 1.12.3
• 9815bbb Updated PHPStan to commit 9815bbba4535b0605aef5b5cb9dd64a63bc44b1f
• e3e80f6 Updated PHPStan to commit e3e80f6c9c246d13e41188d508f0f4afb631b9af
• 052f6b1 Updated PHPStan to commit 052f6b130f53ad50f571b81d4d468b0b0026c2fd
• 5814c7e Updated PHPStan to commit 5814c7e3d71b31f74002912fe5b443efaaf2cd2f
• b3c99fb Updated PHPStan to commit b3c99fb1547fe43b60317550762becce39d516a6
• 3592cf0 Updated PHPStan to commit 3592cf021d99a8d60373c6fb720da541566e03e8
• c26886d Updated PHPStan to commit c26886d5caecf2c8a51abe8642ce98dcb694c182
• df1dfd0 Update baselines
• 3e52bb0 Updated PHPStan to commit 3e52bb081ddb530bbbd651b489b809b0d6c480e0
• Additional commits viewable in compare view

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