Update dependency phpstan/phpstan to ^1.12.11 #2547

Job	Run time
Check Backward Compatibility	0s
Check Coding Standards (locked, 8.2, ubuntu-latest)	27s
Run benchmarks (locked, 8.3, ubuntu-latest)	27s
Test Compatibility (locked, 8.3, ubuntu-latest)	24s
Test Compatibility (locked, 8.3, windows-latest)	47s
Check Demo Scripts (locked, 8.3, ubuntu-latest)	14s
Mutation tests (locked, 8.3, ubuntu-latest)	11m 15s
Run benchmarks (locked, 8.3, windows-latest)	48s
PHPUnit tests (lowest, 8.2, ubuntu-latest)	4m 2s
Static Analysis by PHPStan (locked, 8.2, ubuntu-latest)	1m 0s
Static Analysis by Psalm (locked, 8.3, ubuntu-latest)	25s
PHPUnit tests (lowest, 8.2, windows-latest)	2m 28s
Static Analysis by PHPStan (locked, 8.3, ubuntu-latest)	30s
PHPUnit tests (lowest, 8.3, ubuntu-latest)	1m 26s
PHPUnit tests (lowest, 8.3, windows-latest)	1m 34s
PHPUnit tests (highest, 8.2, ubuntu-latest)	4m 11s
PHPUnit tests (highest, 8.2, windows-latest)	2m 44s
PHPUnit tests (highest, 8.3, ubuntu-latest)	4m 17s
PHPUnit tests (highest, 8.3, windows-latest)	1m 31s
PHPUnit tests (locked, 8.2, ubuntu-latest)	4m 15s
PHPUnit tests (locked, 8.2, windows-latest)	2m 22s
PHPUnit tests (locked, 8.3, ubuntu-latest)	1m 16s
PHPUnit tests (locked, 8.3, windows-latest)	1m 30s
	47m 53s

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