Update phpstan/phpstan requirement from 1.8.0 to 1.9.7

[dependabot[bot]]

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

Release notes

Sourced from phpstan/phpstan's releases.

1.9.7

Bleeding edge 🔪

• Empty skipCheckGenericClasses (https://github.com/phpstan/phpstan-src/commit/28c2c79b16cac6ba6b01f1b4d211541dd49d8a77)

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 (https://github.com/phpstan/phpstan-src/commit/480626ecb52d2e98cc28cee8a18dfb86112b7f8f)

Bugfixes 🐛

• Fixed incorrect while loop logic (https://github.com/phpstan/phpstan-src/commit/091fcafb07ac0b3eb261285c049d9c0f214a535c), #8643
• Fixed scenario with zero analysed files (https://github.com/phpstan/phpstan-src/commit/6debffdb5892f7fb311a60634ec9cda79b6e3154)

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!

Commits

• 0501435 PHPStan 1.9.7
• 707c831 Updated PHPStan to commit d279f388f5a1cb7a6f821dbecc4052a9ebbb8417
• 23daeff Updated PHPStan to commit 091fcafb07ac0b3eb261285c049d9c0f214a535c
• 1a28725 Updated Composer baseline
• af72eaa Updated PHPUnit baseline
• c0d39c1 Updated PHPStan to commit 28c2c79b16cac6ba6b01f1b4d211541dd49d8a77
• 45dbb01 Updated PHPStan to commit 752baaf49f65586b79ab24d5beb4b385c65a281c
• 7f88292 Updated PHPStan to commit 02753c6883677edd87d40f397f057daddd103a05
• b4c0d3f Updated PHPStan to commit 6debffdb5892f7fb311a60634ec9cda79b6e3154
• 92ac649 Reproduce progress bar crash if all passed paths to analyse are excluded
• Additional commits viewable in compare view

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[dependabot[bot]]

Superseded by #221.