refactor: fix phpstan errors in mock classes #13349

Job	Run time
Setup PHP Version for Code Coverage	3s
Others (8.2) / Sanity Tests	3m 53s
Others (8.3) / Sanity Tests	2m 28s
Others (8.1) / Sanity Tests	2m 35s
Others (8.4) / Sanity Tests	2m 20s
SeparateProcess (8.4) / tests	3m 15s
SeparateProcess (8.1) / tests	3m 27s
DatabaseLive (8.4, OCI8, 8.0) / tests	7m 21s
DatabaseLive (8.4, Postgre, 8.0) / tests	2m 38s
SeparateProcess (8.3) / tests	3m 9s
DatabaseLive (8.3, SQLite3, 8.0) / tests	2m 27s
SeparateProcess (8.2) / tests	3m 50s
DatabaseLive (8.3, MySQLi, 8.0) / tests	4m 21s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	5m 9s
DatabaseLive (8.1, OCI8, 8.0) / tests	6m 22s
DatabaseLive (8.2, OCI8, 8.0) / tests	7m 3s
DatabaseLive (8.1, Postgre, 8.0) / tests	2m 42s
DatabaseLive (8.1, SQLSRV, 8.0) / tests	5m 15s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	5m 25s
DatabaseLive (8.4, SQLite3, 8.0) / tests	3m 18s
DatabaseLive (8.3, Postgre, 8.0) / tests	2m 37s
DatabaseLive (8.1, SQLite3, 8.0) / tests	2m 39s
DatabaseLive (8.2, Postgre, 8.0) / tests	3m 11s
DatabaseLive (8.1, MySQLi, 5.7) / tests	3m 58s
DatabaseLive (8.3, OCI8, 8.0) / tests	6m 15s
DatabaseLive (8.2, SQLite3, 8.0) / tests	3m 38s
DatabaseLive (8.1, MySQLi, 8.0) / tests	4m 14s
DatabaseLive (8.2, MySQLi, 8.0) / tests	5m 16s
DatabaseLive (8.4, MySQLi, 8.0) / tests	6m 30s
CacheLive (8.3) / Cache Live Tests	1m 57s
CacheLive (8.1) / Cache Live Tests	2m 8s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	4m 43s
CacheLive (8.2) / Cache Live Tests	2m 11s
CacheLive (8.4) / Cache Live Tests	1m 59s
Upload coverage results to Coveralls / coveralls	45s
	2h 9m 2s

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