refactor: change phpstan FactoryCollection return type #1978

Job	Run time
Static Analysis	37s
Code Coverage	59s
Build Documentation	15s
Sync meta files	0s
P:8.1, S:6.3.*, D:mysql (dama)	37s
P:8.1, S:6.3.*, D:mongo	49s
P:8.1, S:6.4.*, D:mysql (dama)	47s
P:8.1, S:6.4.*, D:mongo	50s
P:8.2, S:6.3.*, D:mysql (dama)	36s
P:8.2, S:6.3.*, D:mongo	52s
P:8.2, S:6.4.*, D:mysql (dama)	39s
P:8.2, S:6.4.*, D:mongo	51s
P:8, S:5.4.*, D:mysql\|mongo (lowest) (dama)	51s
P:8.2, S:*, D:none	26s
P:8.2, S:*, D:mysql\|mongo (dama)	54s
P:8.2, S:*, D:pgsql\|mongo (dama)	1m 14s
P:8.2, S:*, D:pgsql	2m 0s
composer-validate / Validate composer.json	7s
Run php-cs-fixer	0s
	13m 24s

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