Build(deps-dev): Bump phpstan/phpstan from 1.11.11 to 1.12.8 #1322

Job	Run time
Validate composer (8.1, highest)	9s
Linting (8.1)	16s
Linting (8.2)	13s
Linting (8.3)	20s
Static Code Analysis with PHPStan (8.1, locked)	22s
Static Code Analysis with PHPStan (8.2, locked)	22s
Check Coding Standards with PHPCS (8.1, highest)	13s
Check for Backward Compatibility breaks (8.1, highest)	17s
Static Code Analysis with PHPStan (8.3, locked)	20s
Install dependencies (8.1, lowest, false)	14s
Install dependencies (8.1, highest, false)	14s
UnitTests with PHPUnit (8.1, highest)	14s
Install dependencies (8.2, lowest, false)	15s
UnitTests with PHPUnit (8.2, highest)	18s
Install dependencies (8.2, highest, false)	15s
UnitTests with PHPUnit (8.3, highest)	14s
Install dependencies (8.3, lowest, false)	15s
Install dependencies (8.3, highest, false)	21s
Install dependencies (8.1, locked, false)	14s
Install dependencies (8.2, locked, false)	21s
Install dependencies (8.3, locked, false)	16s
Install dependencies (8.4, highest, true)	20s
Code Coverage with PHPUnit (8.1, highest)	21s
Code Coverage with PHPUnit (8.2, highest)	16s
Code Coverage with PHPUnit (8.3, highest)	21s
Compare results with PHPUnit (8.1, highest)	25s
Compare results with PHPUnit (8.2, highest)	38s
Compare results with PHPUnit (8.3, highest)	21s
	8m 25s

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