refactor: cleanup deprecations in `CodeIgniter` #14309

Job	Run time
Setup PHP Version for Code Coverage	2s
Others (8.3) / Sanity Tests	2m 33s
Others (8.5) / Sanity Tests	2m 38s
Others (8.4) / Sanity Tests	2m 21s
Others (8.2) / Sanity Tests	3m 59s
SeparateProcess (8.2) / tests	4m 11s
CacheLive (8.3) / Cache Live Tests	2m 10s
SeparateProcess (8.4) / tests	3m 28s
CacheLive (8.5) / Cache Live Tests	2m 15s
SeparateProcess (8.5) / tests	3m 37s
DatabaseLive (8.4, SQLite3, 8.0) / tests	2m 25s
DatabaseLive (8.3, Postgre, 8.0) / tests	2m 58s
DatabaseLive (8.2, MySQLi, 5.7) / tests	3m 43s
DatabaseLive (8.3, OCI8, 8.0) / tests	7m 6s
DatabaseLive (8.5, OCI8, 8.0) / tests	6m 31s
DatabaseLive (8.4, OCI8, 8.0) / tests	6m 39s
SeparateProcess (8.3) / tests	3m 43s
DatabaseLive (8.5, SQLite3, 8.0) / tests	2m 12s
CacheLive (8.4) / Cache Live Tests	2m 19s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	5m 45s
DatabaseLive (8.4, Postgre, 8.0) / tests	2m 54s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	5m 19s
CacheLive (8.2) / Cache Live Tests	2m 27s
DatabaseLive (8.2, MySQLi, 8.0) / tests	6m 32s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	5m 28s
DatabaseLive (8.2, OCI8, 8.0) / tests	7m 52s
DatabaseLive (8.4, MySQLi, 8.0) / tests	3m 58s
DatabaseLive (8.5, Postgre, 8.0) / tests	2m 30s
DatabaseLive (8.5, MySQLi, 8.0) / tests	4m 21s
DatabaseLive (8.5, SQLSRV, 8.0) / tests	4m 47s
DatabaseLive (8.2, SQLite3, 8.0) / tests	3m 8s
DatabaseLive (8.3, SQLite3, 8.0) / tests	2m 16s
DatabaseLive (8.3, MySQLi, 8.0) / tests	4m 41s
DatabaseLive (8.2, Postgre, 8.0) / tests	3m 16s
Upload coverage results to Coveralls / coveralls	50s
	2h 10m 54s

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