refactor: simplify and optimize handleRequest method in CodeIgniter #15805

Job	Run time
Setup PHP Version for Code Coverage	4s
Others (8.5) / Sanity Tests	1m 18s
Others (8.2) / Sanity Tests	2m 33s
Others (8.3) / Sanity Tests	1m 23s
Others (8.4) / Sanity Tests	1m 34s
CacheLive (8.4) / Cache Live Tests	1m 3s
CacheLive (8.2) / Cache Live Tests	1m 14s
CacheLive (8.5) / Cache Live Tests	1m 7s
SeparateProcess (8.2) / tests	2m 3s
CacheLive (8.3) / Cache Live Tests	1m 10s
SeparateProcess (8.3) / tests	2m 25s
SeparateProcess (8.5) / tests	1m 58s
DatabaseLive (8.3, MySQLi, 8.0) / tests	6m 12s
DatabaseLive (8.4, MySQLi, 8.0) / tests	3m 37s
SeparateProcess (8.4) / tests	2m 5s
DatabaseLive (8.2, OCI8, 8.0) / tests	8m 57s
DatabaseLive (8.4, SQLite3, 8.0) / tests	1m 6s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	10m 53s
DatabaseLive (8.4, Postgre, 8.0) / tests	1m 40s
DatabaseLive (8.5, SQLSRV, 8.0) / tests	4m 58s
DatabaseLive (8.3, OCI8, 8.0) / tests	6m 56s
DatabaseLive (8.4, OCI8, 8.0) / tests	7m 52s
DatabaseLive (8.2, MySQLi, 5.7) / tests	3m 32s
DatabaseLive (8.5, Postgre, 8.0) / tests	1m 36s
DatabaseLive (8.2, Postgre, 8.0) / tests	3m 33s
DatabaseLive (8.5, OCI8, 8.0) / tests	7m 4s
DatabaseLive (8.2, SQLite3, 8.0) / tests	2m 29s
DatabaseLive (8.5, MySQLi, 8.0) / tests	3m 46s
DatabaseLive (8.5, SQLite3, 8.0) / tests	1m 14s
DatabaseLive (8.3, SQLite3, 8.0) / tests	1m 11s
DatabaseLive (8.2, MySQLi, 8.0) / tests	4m 58s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	4m 55s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	6m 30s
DatabaseLive (8.3, Postgre, 8.0) / tests	2m 24s
Upload coverage results to Coveralls / coveralls	51s
	1h 56m 11s

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