Update phpstan/phpstan requirement from ^0.12.80 to ^0.12.85

[dependabot]

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

Release notes

Sourced from phpstan/phpstan's releases.

0.12.85

Improvements 🔧

• TypeInferenceTestCase - allow 3rd parties same modern style of type inference testing as in NodeScopeResolverTest (phpstan/phpstan-src@3af8630), documentation: https://phpstan.org/developing-extensions/testing
• Dynamic throw type extensions (phpstan/phpstan-src@2bf30bf), #4814, #4819, documentation: https://phpstan.org/developing-extensions/dynamic-throw-type-extensions
• Nicer error when StubValidator throws an internal exception (phpstan/phpstan-src@008f324), phpstan/phpstan-symfony#148

Bugfixes 🐛

• Fixed === and !== type inference with treatPhpDocTypesAsCertain: false (#476), thanks @​ruudk!
• Address #4881 by implementing a more complete fake stream wrapper (#501), thanks @​rrazor!
• Disable OPCache for PHP < 7.4.x, #4881 (#501), thanks @​rrazor!
• Read PHPDocs for built-in method even if the method has multiple variants (phpstan/phpstan-src@b48fd77), #4821
• yield has implicit throw point (phpstan/phpstan-src@033aeff), #4863
• Built-in PHP functions without required parameters and no arguments passed do not have implicit throw point (phpstan/phpstan-src@09d3488), #4838
• Throwable catch block also uses implicit throw points even when there are explicit ones (phpstan/phpstan-src@54a204e), #4820, #4879
• MethodsClassReflectionExtension for SoapClient magic methods (phpstan/phpstan-src@f6107ad), #4822, #262
• PHP does not cache is_dir() and similar function values for nonexistent files (phpstan/phpstan-src@1eaef04), #4816
• Severity field in GitLab error formatter, GitLab 13.x expects the field in code quality reports (#504), thanks @​stockalexander!
• Type-specified nullsafe call also removes null from the chain (phpstan/phpstan-src@6622401), #4757, #4690

Function signature fixes 🤖

• Dynamic return type extension for date_create_from_format and date_create_immutable_from_format (#502), thanks @​pascalheidmann!

Commits

• 20e6333 PHPStan 0.12.85
• f077501 Updated PHPStan to commit d141309018c3b6455c967b7d00c2dcf0e7d8712c
• c89e8d9 Updated PHPStan to commit 93b025bc48d1d63ca5373e0f6be632fb5023541d
• 83f646f Updated PHPStan to commit 662240117e38bdf3fa6628f767e8e3010e28dd9b
• 28eb2d7 Updated PHPStan to commit 2ec878b66b8e87840df811ebc4feea6b6b5068e2
• 2ff43fb Update dynamic-throw-type-extensions.md
• afa37f8 Documentation - throw type extensions
• 0f8470a Updated PHPStan to commit 2bf30bff0b91e2c8144171ce6892fd9098183eff
• 284cac5 Updated PHPStan to commit a00eb3f1b4d8f0658bc410ea5e6e72b6982ed0cd
• 2681262 Updated PHPStan to commit 1eaef0463d2347bdbef3612da158853519867d82
• Additional commits viewable in compare view

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[coveralls]

Coverage remained the same at 100.0% when pulling b73334c on dependabot/composer/phpstan/phpstan-tw-0.12.85 into a9c9bfb on 4.x.