refactor: remove case-insensitive comparison for HTTP methods in `FilterCollector` #14298

Job	Run time
Setup PHP Version for Code Coverage	2s
Others (8.2) / Sanity Tests	3m 51s
Others (8.4) / Sanity Tests	2m 33s
Others (8.3) / Sanity Tests	2m 30s
Others (8.5) / Sanity Tests	2m 25s
CacheLive (8.5) / Cache Live Tests	2m 11s
DatabaseLive (8.4, MySQLi, 8.0) / tests	5m 39s
CacheLive (8.4) / Cache Live Tests	2m 13s
CacheLive (8.3) / Cache Live Tests	2m 9s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	5m 36s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	5m 31s
CacheLive (8.2) / Cache Live Tests	2m 16s
DatabaseLive (8.5, MySQLi, 8.0) / tests	4m 41s
DatabaseLive (8.5, OCI8, 8.0) / tests	7m 11s
DatabaseLive (8.2, SQLite3, 8.0) / tests	2m 46s
DatabaseLive (8.2, MySQLi, 8.0) / tests	6m 16s
DatabaseLive (8.3, OCI8, 8.0) / tests	6m 54s
DatabaseLive (8.2, Postgre, 8.0) / tests	3m 20s
DatabaseLive (8.3, Postgre, 8.0) / tests	2m 33s
DatabaseLive (8.5, Postgre, 8.0) / tests	2m 46s
DatabaseLive (8.5, SQLite3, 8.0) / tests	2m 21s
DatabaseLive (8.3, SQLite3, 8.0) / tests	2m 27s
DatabaseLive (8.2, OCI8, 8.0) / tests	7m 27s
DatabaseLive (8.4, SQLite3, 8.0) / tests	2m 18s
DatabaseLive (8.4, OCI8, 8.0) / tests	7m 12s
DatabaseLive (8.3, MySQLi, 8.0) / tests	4m 35s
DatabaseLive (8.4, Postgre, 8.0) / tests	2m 58s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	5m 20s
SeparateProcess (8.4) / tests	3m 26s
SeparateProcess (8.3) / tests	3m 29s
DatabaseLive (8.5, SQLSRV, 8.0) / tests	5m 44s
SeparateProcess (8.2) / tests	3m 49s
SeparateProcess (8.5) / tests	3m 40s
DatabaseLive (8.2, MySQLi, 5.7) / tests	4m 4s
Upload coverage results to Coveralls / coveralls	51s
	2h 13m 4s

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