refactor: implement development versions for `CodeIgniter::CI_VERSION` #14235

Job	Run time
Setup PHP Version for Code Coverage	8s
Others (8.4) / Sanity Tests	2m 29s
Others (8.3) / Sanity Tests	2m 38s
Others (8.2) / Sanity Tests	3m 57s
Others (8.5) / Sanity Tests	2m 41s
CacheLive (8.2) / Cache Live Tests	2m 18s
CacheLive (8.5) / Cache Live Tests	2m 12s
SeparateProcess (8.3) / tests	3m 30s
SeparateProcess (8.2) / tests	3m 30s
SeparateProcess (8.5) / tests	3m 34s
CacheLive (8.4) / Cache Live Tests	2m 6s
DatabaseLive (8.2, SQLite3, 8.0) / tests	2m 56s
SeparateProcess (8.4) / tests	3m 18s
DatabaseLive (8.2, OCI8, 8.0) / tests	7m 29s
DatabaseLive (8.2, MySQLi, 8.0) / tests	5m 24s
DatabaseLive (8.2, Postgre, 8.0) / tests	3m 24s
DatabaseLive (8.3, MySQLi, 8.0) / tests	4m 26s
DatabaseLive (8.5, SQLite3, 8.0) / tests	2m 27s
DatabaseLive (8.3, Postgre, 8.0) / tests	2m 56s
DatabaseLive (8.5, OCI8, 8.0) / tests	6m 17s
DatabaseLive (8.5, MySQLi, 8.0) / tests	7m 19s
DatabaseLive (8.5, Postgre, 8.0) / tests	2m 50s
CacheLive (8.3) / Cache Live Tests	2m 5s
DatabaseLive (8.3, SQLite3, 8.0) / tests	2m 22s
DatabaseLive (8.4, MySQLi, 8.0) / tests	5m 11s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	5m 11s
DatabaseLive (8.4, Postgre, 8.0) / tests	2m 48s
DatabaseLive (8.5, SQLSRV, 8.0) / tests	5m 4s
DatabaseLive (8.4, SQLite3, 8.0) / tests	2m 6s
DatabaseLive (8.3, OCI8, 8.0) / tests	6m 51s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	6m 6s
DatabaseLive (8.2, MySQLi, 5.7) / tests	3m 53s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	5m 9s
DatabaseLive (8.4, OCI8, 8.0) / tests	6m 51s
Upload coverage results to Coveralls / coveralls	43s
	2h 12m 9s

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