Update dependency phpstan/phpstan to ^1.12.11

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
phpstan/phpstan	^1.12.10 -> ^1.12.11

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Release Notes

phpstan/phpstan (phpstan/phpstan)

v1.12.11

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Improvements 🔧

• Update fidry/cpu-core-counter (#​3632), https://github.com/phpstan/phpstan/discussions/12026
• Add TypeCombinator::removeTruthy() method (#​3633), thanks @​canvural!
• Add basic type narrowing for $a != '' (#​3304), thanks @​thg2k!
• Use the correct type for final constants (#​3638), thanks @​thg2k!

Bugfixes 🐛

• Fix resolving class constant type using self:: in a class attribute argument (phpstan/phpstan-src@3447391), #​12011, #​10314
• Do not report nonexistent variable passed to by-ref parameter with checkImplicitMixed (level 10 in 2.0) (phpstan/phpstan-src@f158d5b), #​12015
• Add null to array_map(null, $a, $b) (#​3562), thanks @​schlndh!
• Fix ArrayType<mixed, X> with checkImplicitMixed (level 10 in 2.0) (#​3636), #​12051, thanks @​VincentLanglet!

Function signature fixes 🤖

• Fix extract() signature (#​3512), thanks @​VincentLanglet!
• Improve signature for get_defined_constants() (#​3635), thanks @​thg2k!
• fgetcsv accepts null for $length (#​3077), thanks @​staabm!

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