feat: named capture group support for regex transformer step #2951

Job	Run time
ci / check if job needs to run	6s
ci / prepare test matrix	11s
ci / MOODLE_35_STABLE - pgsql - php 7.1 - tool_dataflows	3m 52s
ci / MOODLE_310_STABLE - pgsql - php 7.2 - tool_dataflows	5m 28s
ci / MOODLE_311_STABLE - mariadb - php 7.3 - tool_dataflows	7m 29s
ci / MOODLE_35_STABLE - mariadb - php 7.1 - tool_dataflows	5m 8s
ci / MOODLE_35_STABLE - mariadb - php 7.2 - tool_dataflows	7m 4s
ci / MOODLE_35_STABLE - pgsql - php 7.2 - tool_dataflows	3m 46s
ci / MOODLE_37_STABLE - pgsql - php 7.2 - tool_dataflows	4m 4s
ci / MOODLE_36_STABLE - mariadb - php 7.1 - tool_dataflows	7m 44s
ci / MOODLE_39_STABLE - mariadb - php 7.2 - tool_dataflows	6m 26s
ci / MOODLE_39_STABLE - mariadb - php 7.3 - tool_dataflows	6m 27s
ci / MOODLE_38_STABLE - mariadb - php 7.3 - tool_dataflows	7m 53s
ci / MOODLE_39_STABLE - pgsql - php 7.2 - tool_dataflows	4m 30s
ci / MOODLE_39_STABLE - pgsql - php 7.3 - tool_dataflows	4m 40s
ci / MOODLE_400_STABLE - pgsql - php 7.3 - tool_dataflows	5m 41s
ci / MOODLE_401_STABLE - pgsql - php 7.4 - tool_dataflows	5m 44s
ci / MOODLE_401_STABLE - mariadb - php 7.4 - tool_dataflows	8m 34s
ci / MOODLE_401_STABLE - mariadb - php 8.0 - tool_dataflows	6m 25s
ci / MOODLE_401_STABLE - pgsql - php 8.0 - tool_dataflows	5m 25s
ci / Release to the Moodle plugin directory	0s
	1h 46m 37s

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