refactor: Fix phpstan return.type (#9375) #12827

Job	Run time
Setup PHP Version for Code Coverage	1s
Others (8.3) / Sanity Tests	2m 51s
Others (8.2) / Sanity Tests	3m 29s
Others (8.1) / Sanity Tests	2m 37s
CacheLive (8.1) / Cache Live Tests	2m 6s
CacheLive (8.3) / Cache Live Tests	2m 2s
DatabaseLive (8.1, MySQLi, 5.7) / tests	2m 53s
CacheLive (8.2) / Cache Live Tests	2m 6s
DatabaseLive (8.1, MySQLi, 8.0) / tests	4m 26s
DatabaseLive (8.1, OCI8, 8.0) / tests	5m 57s
DatabaseLive (8.1, SQLite3, 8.0) / tests	2m 33s
DatabaseLive (8.1, Postgre, 8.0) / tests	2m 24s
DatabaseLive (8.1, SQLSRV, 8.0) / tests	4m 34s
DatabaseLive (8.2, MySQLi, 8.0) / tests	4m 47s
DatabaseLive (8.2, OCI8, 8.0) / tests	7m 7s
DatabaseLive (8.2, Postgre, 8.0) / tests	3m 2s
DatabaseLive (8.2, SQLite3, 8.0) / tests	2m 57s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	4m 52s
DatabaseLive (8.3, MySQLi, 8.0) / tests	4m 45s
DatabaseLive (8.3, OCI8, 8.0) / tests	6m 8s
DatabaseLive (8.3, Postgre, 8.0) / tests	2m 50s
DatabaseLive (8.3, SQLite3, 8.0) / tests	2m 28s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	5m 1s
SeparateProcess (8.1) / tests	3m 36s
SeparateProcess (8.3) / tests	4m 3s
SeparateProcess (8.2) / tests	3m 11s
Upload coverage results to Coveralls / coveralls	34s
	1h 33m 20s

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