refactor: upgrade to PHP 8.1 with rector #10143

Job	Run time
Setup PHP Version for Code Coverage	1s
Others (8.3) / Sanity Tests	2m 53s
Others (8.2) / Sanity Tests	2m 57s
Others (8.1) / Sanity Tests	4m 2s
CacheLive (8.2) / Cache Live Tests	2m 7s
CacheLive (8.3) / Cache Live Tests	2m 10s
CacheLive (8.1) / Cache Live Tests	2m 19s
DatabaseLive (8.1, MySQLi, 5.7) / tests	3m 55s
DatabaseLive (8.1, MySQLi, 8.0) / tests	4m 50s
DatabaseLive (8.1, OCI8, 8.0) / tests	6m 53s
DatabaseLive (8.1, Postgre, 8.0) / tests	3m 52s
DatabaseLive (8.1, SQLite3, 8.0) / tests	3m 17s
DatabaseLive (8.1, SQLSRV, 8.0) / tests	5m 7s
DatabaseLive (8.2, MySQLi, 8.0) / tests	4m 1s
DatabaseLive (8.2, OCI8, 8.0) / tests	6m 34s
DatabaseLive (8.2, Postgre, 8.0) / tests	3m 2s
DatabaseLive (8.2, SQLite3, 8.0) / tests	2m 40s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	4m 57s
DatabaseLive (8.3, MySQLi, 8.0) / tests	4m 30s
DatabaseLive (8.3, OCI8, 8.0) / tests	6m 23s
DatabaseLive (8.3, Postgre, 8.0) / tests	3m 25s
DatabaseLive (8.3, SQLite3, 8.0) / tests	3m 0s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	4m 29s
SeparateProcess (8.1) / tests	3m 41s
SeparateProcess (8.2) / tests	3m 23s
SeparateProcess (8.3) / tests	3m 28s
Upload coverage results to Coveralls / coveralls	38s
	1h 38m 34s

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