chore(deps): update dependency phpstan/phpstan to v1.10.21

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
phpstan/phpstan	require-dev	patch	1.10.19 -> 1.10.21

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Release Notes

phpstan/phpstan

v1.10.21

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Bugfixes 🐛

• Fix defining variables in match condition (phpstan/phpstan-src@d6c2752), #​9474
• Fix UnusedClosureUsesRule for already traversed match (phpstan/phpstan-src@a719486), https://github.com/phpstan/phpstan-phpunit/issues/190, #​9478
• Update BetterReflection (phpstan/phpstan-src@a540e44), #​9477
  • Fix newInstance on ReflectionAttribute adapter with enum argument (ondrejmirtes/BetterReflection@277b960)

Internals 🔍

• Cheap checks first in ObjectType (#​2475), thanks @​mad-briller!

v1.10.20

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Improvements 🔧

• PHPStan Pro: Change Cloudflare DNS for to family version (#​2467), thanks @​spaze!
• Add non-zero-int type (#​2449), thanks @​PrinsFrank!
• Implement gettype() return type extension (#​2437), thanks @​staabm!

Bugfixes 🐛

• Allow to remember constant and impure expressions in match condition (phpstan/phpstan-src@0cdda0b), #​4451, #​6064, #​9457
• Fix gettype in match condition (phpstan/phpstan-src@e4ef00c, phpstan/phpstan-src@caa0a5b), #​8614
• Fix get_class in match condition (phpstan/phpstan-src@106526d), #​1885, #​8536, #​8092
• Understand get_class compared with static::class (phpstan/phpstan-src@590eb03), #​1885
• Understand gettype when there's a union of strings on the other side (phpstan/phpstan-src@36e412f), #​6294, #​2580
• Treat ConstantArrayType as covariant in its keys and values (#​2464), #​9161, thanks @​jiripudil!
• Treat ArrayType as covariant in its keys and values (#​2465), thanks @​jiripudil!
• Make NonEmptyArrayType::toArray() return $this (#​2349), #​9208, thanks @​zonuexe!
• Retain list type via array_push() and array_unshift() (#​2451), #​8449, thanks @​herndlm!
• For @var above throw and return, change the type of expr only for the stmt callback (phpstan/phpstan-src@b551095), #​9459

Internals 🔍

• Remove redundant conditions from RemoveUnusedCodeByPhpVersionIdVisitor. (#​2459), thanks @​mad-briller!
• Return early in CachingVistor to avoid always-false instanceof checks. (#​2460), thanks @​mad-briller!
• Introduce CombinationsHelper (phpstan/phpstan-src@175307e)
• Type::getFiniteTypes() (phpstan/phpstan-src@7912caf, phpstan/phpstan-src@fa9a951, phpstan/phpstan-src@b5cf52b)

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