feat: require double curly braces for placeholders in `regex_match` rule #13357

Job	Run time
Setup PHP Version for Code Coverage	2s
Others (8.4) / Sanity Tests	2m 18s
Others (8.3) / Sanity Tests	9m 45s
Others (8.1) / Sanity Tests	3m 47s
Others (8.2) / Sanity Tests	6m 15s
SeparateProcess (8.1) / tests	3m 40s
SeparateProcess (8.2) / tests	3m 15s
SeparateProcess (8.4) / tests	3m 33s
CacheLive (8.2) / Cache Live Tests	2m 14s
CacheLive (8.4) / Cache Live Tests	2m 11s
SeparateProcess (8.3) / tests	3m 30s
CacheLive (8.3) / Cache Live Tests	2m 17s
DatabaseLive (8.2, OCI8, 8.0) / tests	7m 31s
CacheLive (8.1) / Cache Live Tests	2m 7s
DatabaseLive (8.1, SQLSRV, 8.0) / tests	4m 59s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	5m 17s
DatabaseLive (8.1, MySQLi, 5.7) / tests	3m 47s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	5m 23s
DatabaseLive (8.2, SQLite3, 8.0) / tests	3m 26s
DatabaseLive (8.2, MySQLi, 8.0) / tests	5m 57s
DatabaseLive (8.4, Postgre, 8.0) / tests	2m 56s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	5m 59s
DatabaseLive (8.3, OCI8, 8.0) / tests	6m 15s
DatabaseLive (8.3, Postgre, 8.0) / tests	2m 56s
DatabaseLive (8.4, MySQLi, 8.0) / tests	5m 28s
DatabaseLive (8.1, Postgre, 8.0) / tests	2m 37s
DatabaseLive (8.2, Postgre, 8.0) / tests	3m 25s
DatabaseLive (8.4, OCI8, 8.0) / tests	6m 34s
DatabaseLive (8.3, SQLite3, 8.0) / tests	2m 36s
DatabaseLive (8.4, SQLite3, 8.0) / tests	2m 50s
DatabaseLive (8.3, MySQLi, 8.0) / tests	6m 0s
DatabaseLive (8.1, MySQLi, 8.0) / tests	5m 31s
DatabaseLive (8.1, OCI8, 8.0) / tests	6m 36s
DatabaseLive (8.1, SQLite3, 8.0) / tests	2m 27s
Upload coverage results to Coveralls / coveralls	46s
	2h 24m 10s

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