Lock file maintenance #2784

Job	Run time
static analysis phpstan (locked, 8.4, ubuntu-latest)	19s
mutation tests (locked, 8.4, ubuntu-latest)	27s
markdown lint	15s
php cs fixer (locked, 8.4, ubuntu-latest)	17s
phpunit tests (highest, 8.5, ubuntu-latest)	19s
phpunit tests (lowest, 8.4, ubuntu-latest)	17s
phpunit tests (lowest, 8.5, ubuntu-latest)	23s
phpunit tests (locked, 8.4, ubuntu-latest)	27s
phpunit tests (locked, 8.5, ubuntu-latest)	16s
phpunit tests (highest, 8.4, ubuntu-latest)	21s
	3m 21s

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