refactor: PHPDocs in `env()` #13002

Job	Run time
Setup PHP Version for Code Coverage	1s
Others (8.2) / Sanity Tests	4m 0s
Others (8.3) / Sanity Tests	2m 23s
Others (8.1) / Sanity Tests	2m 30s
Others (8.4) / Sanity Tests	2m 17s
CacheLive (8.3) / Cache Live Tests	2m 8s
CacheLive (8.1) / Cache Live Tests	1m 56s
CacheLive (8.2) / Cache Live Tests	2m 15s
CacheLive (8.4) / Cache Live Tests	1m 55s
DatabaseLive (8.1, MySQLi, 8.0) / tests	5m 40s
SeparateProcess (8.1) / tests	3m 22s
SeparateProcess (8.2) / tests	3m 36s
SeparateProcess (8.3) / tests	3m 16s
SeparateProcess (8.4) / tests	3m 3s
DatabaseLive (8.1, Postgre, 8.0) / tests	2m 24s
DatabaseLive (8.1, MySQLi, 5.7) / tests	3m 22s
DatabaseLive (8.1, OCI8, 8.0) / tests	6m 14s
DatabaseLive (8.1, SQLite3, 8.0) / tests	2m 44s
DatabaseLive (8.1, SQLSRV, 8.0) / tests	5m 2s
DatabaseLive (8.2, MySQLi, 8.0) / tests	5m 26s
DatabaseLive (8.2, OCI8, 8.0) / tests	7m 9s
DatabaseLive (8.2, Postgre, 8.0) / tests	3m 16s
DatabaseLive (8.2, SQLite3, 8.0) / tests	3m 14s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	6m 10s
DatabaseLive (8.3, MySQLi, 8.0) / tests	5m 21s
DatabaseLive (8.3, OCI8, 8.0) / tests	6m 23s
DatabaseLive (8.3, Postgre, 8.0) / tests	2m 31s
DatabaseLive (8.3, SQLite3, 8.0) / tests	2m 29s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	5m 0s
DatabaseLive (8.4, MySQLi, 8.0) / tests	4m 11s
DatabaseLive (8.4, OCI8, 8.0) / tests	5m 48s
DatabaseLive (8.4, Postgre, 8.0) / tests	2m 26s
DatabaseLive (8.4, SQLite3, 8.0) / tests	2m 38s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	5m 13s
Upload coverage results to Coveralls / coveralls	1m 3s
	2h 6m 26s

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