Update dependency phpstan/phpstan to v1.9.7

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
phpstan/phpstan	require-dev	patch	1.9.6 -> 1.9.7

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Release Notes

phpstan/phpstan

v1.9.7

Compare Source

Bleeding edge 🔪

• Empty skipCheckGenericClasses (phpstan/phpstan-src@28c2c79)

If you want to see the shape of things to come and adopt bleeding edge features early, you can include this config file in your project's phpstan.neon:

includes:
	- vendor/phpstan/phpstan/conf/bleedingEdge.neon

Of course, there are no backwards compatibility guarantees when you include this file. The behaviour and reported errors can change in minor versions with this file included. Learn more

Improvements 🔧

• UnionType::pickTypes overriden in BenevolentUnionType for a more benevolent behaviour (phpstan/phpstan-src@480626e)

Bugfixes 🐛

• Fixed incorrect while loop logic (phpstan/phpstan-src@091fcaf), #​8643
• Fixed scenario with zero analysed files (phpstan/phpstan-src@6debffd)

Function signature fixes 🤖

• min() and max() do not return false on PHP 8 (#​2161), thanks @​staabm!
• Fix a few MongoDB definitions (#​2140), thanks @​UCIS!

Internals 🔍

• Added missing namespaces in tests (#​2156), thanks @​staabm!

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