refactor(HTTP): optimize file path parsing in `download()` method #15558

Job	Run time
Setup PHP Version for Code Coverage	4s
Others (8.4) / Sanity Tests	1m 17s
Others (8.2) / Sanity Tests	2m 29s
Others (8.5) / Sanity Tests	1m 20s
Others (8.3) / Sanity Tests	1m 21s
SeparateProcess (8.4) / tests	2m 11s
SeparateProcess (8.3) / tests	2m 10s
DatabaseLive (8.5, SQLite3, 8.0) / tests	1m 12s
CacheLive (8.4) / Cache Live Tests	1m 4s
CacheLive (8.2) / Cache Live Tests	1m 10s
CacheLive (8.5) / Cache Live Tests	1m 4s
CacheLive (8.3) / Cache Live Tests	1m 6s
SeparateProcess (8.2) / tests	2m 16s
SeparateProcess (8.5) / tests	2m 14s
DatabaseLive (8.5, Postgre, 8.0) / tests	1m 42s
DatabaseLive (8.5, OCI8, 8.0) / tests	6m 53s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	5m 45s
DatabaseLive (8.3, Postgre, 8.0) / tests	1m 40s
DatabaseLive (8.2, OCI8, 8.0) / tests	7m 55s
DatabaseLive (8.2, Postgre, 8.0) / tests	2m 37s
DatabaseLive (8.5, SQLSRV, 8.0) / tests	4m 53s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	4m 43s
DatabaseLive (8.2, SQLite3, 8.0) / tests	1m 52s
DatabaseLive (8.2, MySQLi, 5.7) / tests	2m 51s
DatabaseLive (8.2, MySQLi, 8.0) / tests	5m 17s
DatabaseLive (8.4, MySQLi, 8.0) / tests	3m 49s
DatabaseLive (8.3, MySQLi, 8.0) / tests	3m 18s
DatabaseLive (8.4, OCI8, 8.0) / tests	6m 44s
DatabaseLive (8.4, Postgre, 8.0) / tests	1m 41s
DatabaseLive (8.3, SQLite3, 8.0) / tests	1m 18s
DatabaseLive (8.5, MySQLi, 8.0) / tests	6m 45s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	4m 43s
DatabaseLive (8.3, OCI8, 8.0) / tests	7m 30s
DatabaseLive (8.4, SQLite3, 8.0) / tests	1m 16s
Upload coverage results to Coveralls / coveralls	40s
	1h 44m 50s

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