refactor: introduce PersistentObjectFactory and deprecate PersistentProxyObjectFactory with final #1947

Job	Run time
Build Documentation	26s
Static Analysis	31s
P:8.1, S:6.3.*, D:mysql (dama)	1m 0s
Code Coverage	1m 30s
Sync meta files	0s
P:8.1, S:6.3.*, D:mongo	48s
P:8.1, S:6.4.*, D:mysql (dama)	45s
P:8.1, S:6.4.*, D:mongo	51s
P:8.2, S:6.3.*, D:mysql (dama)	57s
composer-validate / Validate composer.json	8s
P:8.2, S:6.3.*, D:mongo	51s
P:8.2, S:6.4.*, D:mysql (dama)	50s
P:8.2, S:6.4.*, D:mongo	1m 4s
P:8, S:5.4.*, D:mysql\|mongo (lowest) (dama)	57s
P:8.2, S:*, D:none	36s
P:8.2, S:*, D:mysql\|mongo (dama)	1m 9s
P:8.2, S:*, D:pgsql\|mongo (dama)	1m 5s
P:8.2, S:*, D:mysql	1m 4s
P:8.2, S:*, D:pgsql	1m 6s
Run php-cs-fixer	0s
	15m 38s

Provide feedback