refactor: simplify and optimize handleRequest method in CodeIgniter #15851

Job	Run time
Setup PHP Version for Code Coverage	4s
Others (8.5) / Sanity Tests	1m 33s
Others (8.2) / Sanity Tests	2m 31s
Others (8.4) / Sanity Tests	1m 19s
Others (8.3) / Sanity Tests	1m 40s
CacheLive (8.3) / Cache Live Tests	1m 2s
CacheLive (8.5) / Cache Live Tests	1m 9s
CacheLive (8.4) / Cache Live Tests	1m 4s
SeparateProcess (8.3) / tests	2m 12s
SeparateProcess (8.5) / tests	1m 59s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	3m 30s
SeparateProcess (8.4) / tests	2m 9s
DatabaseLive (8.2, MySQLi, 8.0) / tests	3m 29s
DatabaseLive (8.2, SQLite3, 8.0) / tests	1m 45s
SeparateProcess (8.2) / tests	2m 9s
DatabaseLive (8.2, Postgre, 8.0) / tests	2m 39s
DatabaseLive (8.3, OCI8, 8.0) / tests	3m 30s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	3m 31s
DatabaseLive (8.5, OCI8, 8.0) / tests	3m 31s
CacheLive (8.2) / Cache Live Tests	55s
DatabaseLive (8.5, MySQLi, 8.0) / tests	3m 17s
DatabaseLive (8.4, MySQLi, 8.0) / tests	3m 17s
DatabaseLive (8.4, OCI8, 8.0) / tests	3m 31s
DatabaseLive (8.3, Postgre, 8.0) / tests	1m 9s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	3m 17s
DatabaseLive (8.2, OCI8, 8.0) / tests	3m 17s
DatabaseLive (8.5, SQLSRV, 8.0) / tests	1m 2s
DatabaseLive (8.4, SQLite3, 8.0) / tests	25s
DatabaseLive (8.5, Postgre, 8.0) / tests	1m 9s
DatabaseLive (8.5, SQLite3, 8.0) / tests	1m 1s
DatabaseLive (8.2, MySQLi, 5.7) / tests	3m 24s
DatabaseLive (8.4, Postgre, 8.0) / tests	3m 17s
DatabaseLive (8.3, MySQLi, 8.0) / tests	32s
DatabaseLive (8.3, SQLite3, 8.0) / tests	3m 17s
Upload coverage results to Coveralls	0s
	1h 13m 36s

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