refactor: simplify and optimize handleRequest method in CodeIgniter #15796

Job	Run time
Setup PHP Version for Code Coverage	4s
Others (8.2) / Sanity Tests	2m 33s
Others (8.5) / Sanity Tests	1m 25s
Others (8.4) / Sanity Tests	1m 42s
Others (8.3) / Sanity Tests	1m 21s
SeparateProcess (8.4) / tests	1m 53s
SeparateProcess (8.3) / tests	1m 57s
SeparateProcess (8.5) / tests	2m 2s
CacheLive (8.5) / Cache Live Tests	59s
CacheLive (8.4) / Cache Live Tests	1m 2s
SeparateProcess (8.2) / tests	2m 5s
CacheLive (8.2) / Cache Live Tests	1m 15s
CacheLive (8.3) / Cache Live Tests	1m 4s
DatabaseLive (8.3, MySQLi, 8.0) / tests	3m 34s
DatabaseLive (8.4, OCI8, 8.0) / tests	6m 55s
DatabaseLive (8.5, SQLSRV, 8.0) / tests	7m 43s
DatabaseLive (8.3, OCI8, 8.0) / tests	6m 46s
DatabaseLive (8.5, OCI8, 8.0) / tests	7m 17s
DatabaseLive (8.2, OCI8, 8.0) / tests	8m 5s
DatabaseLive (8.2, MySQLi, 5.7) / tests	3m 6s
DatabaseLive (8.4, SQLite3, 8.0) / tests	1m 2s
DatabaseLive (8.2, MySQLi, 8.0) / tests	3m 58s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	5m 54s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	4m 43s
DatabaseLive (8.2, SQLite3, 8.0) / tests	2m 0s
DatabaseLive (8.4, MySQLi, 8.0) / tests	3m 32s
DatabaseLive (8.5, SQLite3, 8.0) / tests	1m 14s
DatabaseLive (8.5, MySQLi, 8.0) / tests	3m 29s
DatabaseLive (8.2, Postgre, 8.0) / tests	2m 26s
DatabaseLive (8.3, Postgre, 8.0) / tests	1m 42s
DatabaseLive (8.4, Postgre, 8.0) / tests	1m 39s
DatabaseLive (8.5, Postgre, 8.0) / tests	1m 37s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	5m 45s
DatabaseLive (8.3, SQLite3, 8.0) / tests	1m 2s
Upload coverage results to Coveralls / coveralls	39s
	1h 43m 30s

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