chore: fix PHPStan null coalescing warnings for Config properties (#1… #14598

Job	Run time
Setup PHP Version for Code Coverage	2s
Others (8.4) / Sanity Tests	2m 58s
Others (8.2) / Sanity Tests	4m 25s
Others (8.5) / Sanity Tests	2m 41s
Others (8.3) / Sanity Tests	2m 47s
SeparateProcess (8.4) / tests	3m 14s
SeparateProcess (8.5) / tests	3m 27s
SeparateProcess (8.2) / tests	3m 21s
SeparateProcess (8.3) / tests	3m 25s
CacheLive (8.3) / Cache Live Tests	2m 18s
CacheLive (8.2) / Cache Live Tests	2m 22s
CacheLive (8.5) / Cache Live Tests	2m 10s
CacheLive (8.4) / Cache Live Tests	2m 10s
DatabaseLive (8.2, MySQLi, 8.0) / tests	4m 40s
DatabaseLive (8.3, MySQLi, 8.0) / tests	5m 58s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	5m 36s
DatabaseLive (8.5, Postgre, 8.0) / tests	2m 51s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	5m 59s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	7m 2s
DatabaseLive (8.2, SQLite3, 8.0) / tests	2m 45s
DatabaseLive (8.4, Postgre, 8.0) / tests	2m 41s
DatabaseLive (8.4, SQLite3, 8.0) / tests	2m 2s
DatabaseLive (8.4, MySQLi, 8.0) / tests	4m 28s
DatabaseLive (8.2, OCI8, 8.0) / tests	9m 6s
DatabaseLive (8.5, MySQLi, 8.0) / tests	4m 9s
DatabaseLive (8.5, OCI8, 8.0) / tests	7m 33s
DatabaseLive (8.3, Postgre, 8.0) / tests	2m 43s
DatabaseLive (8.2, MySQLi, 5.7) / tests	3m 55s
DatabaseLive (8.5, SQLite3, 8.0) / tests	2m 18s
DatabaseLive (8.3, OCI8, 8.0) / tests	8m 1s
DatabaseLive (8.5, SQLSRV, 8.0) / tests	6m 12s
DatabaseLive (8.4, OCI8, 8.0) / tests	8m 16s
DatabaseLive (8.3, SQLite3, 8.0) / tests	2m 8s
DatabaseLive (8.2, Postgre, 8.0) / tests	3m 25s
Upload coverage results to Coveralls / coveralls	48s
	2h 17m 56s

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