Cleanup switch to PSR12 from PSR2 #100

Job	Run time
PHP Lint (8.1)	18s
PHP Lint (8.2)	28s
PHP Lint (8.3)	19s
PHP QS (test:phpcs, 8.1)	23s
PHP QS (test:phpcs, 8.2)	25s
PHP QS (test:phpcs, 8.3)	16s
PHP QS (test:phpcompatibility, 8.1)	39s
PHP QS (test:phpcompatibility, 8.2)	37s
PHP QS (test:phpcompatibility, 8.3)	34s
PHP QS (test:phpmd, 8.1)	18s
PHP QS (test:phpmd, 8.2)	18s
PHP QS (test:phpmd, 8.3)	16s
PHP QS (test:phpstan, 8.1)	29s
PHP QS (test:phpstan, 8.2)	20s
PHP QS (test:phpstan, 8.3)	21s
PHP Unit (^12.4, 8.1)	20s
PHP Unit (^12.4, 8.2)	15s
PHP Unit (^12.4, 8.3)	16s
PHP Unit (^13.0, 8.2)	26s
PHP Unit (^13.0, 8.3)	23s
	7m 41s

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