refactor: remove deprecated types in random_string() helper #13344

Job	Run time
Setup PHP Version for Code Coverage	3s
Others (8.2) / Sanity Tests	3m 26s
Others (8.1) / Sanity Tests	2m 52s
Others (8.4) / Sanity Tests	2m 29s
Others (8.3) / Sanity Tests	2m 36s
SeparateProcess (8.1) / tests	3m 43s
SeparateProcess (8.4) / tests	3m 21s
SeparateProcess (8.2) / tests	3m 31s
SeparateProcess (8.3) / tests	3m 26s
CacheLive (8.1) / Cache Live Tests	1m 59s
CacheLive (8.2) / Cache Live Tests	2m 4s
CacheLive (8.3) / Cache Live Tests	2m 1s
DatabaseLive (8.3, MySQLi, 8.0) / tests	6m 5s
DatabaseLive (8.1, SQLite3, 8.0) / tests	2m 34s
DatabaseLive (8.1, SQLSRV, 8.0) / tests	5m 21s
CacheLive (8.4) / Cache Live Tests	1m 54s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	5m 24s
DatabaseLive (8.2, MySQLi, 8.0) / tests	5m 51s
DatabaseLive (8.3, SQLite3, 8.0) / tests	2m 53s
DatabaseLive (8.3, OCI8, 8.0) / tests	6m 17s
DatabaseLive (8.2, OCI8, 8.0) / tests	6m 53s
DatabaseLive (8.1, MySQLi, 8.0) / tests	5m 11s
DatabaseLive (8.3, Postgre, 8.0) / tests	2m 45s
DatabaseLive (8.4, OCI8, 8.0) / tests	6m 26s
DatabaseLive (8.1, Postgre, 8.0) / tests	2m 38s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	6m 1s
DatabaseLive (8.4, SQLite3, 8.0) / tests	3m 18s
DatabaseLive (8.1, MySQLi, 5.7) / tests	3m 47s
DatabaseLive (8.4, MySQLi, 8.0) / tests	4m 47s
DatabaseLive (8.2, SQLite3, 8.0) / tests	3m 36s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	6m 18s
DatabaseLive (8.2, Postgre, 8.0) / tests	3m 2s
DatabaseLive (8.4, Postgre, 8.0) / tests	2m 30s
DatabaseLive (8.1, OCI8, 8.0) / tests	6m 12s
Upload coverage results to Coveralls / coveralls	38s
	2h 11m 52s

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