API Rename validator classes #712

Job	Run time
ci / Generate matrix	12s
ci / Context	1s
ci / Check governance	0s
ci / 8.3 prf-low mariadb phpunit all	3m 22s
ci / 8.3 mysql80 phpunit all	3m 41s
ci / 8.4 mysql84 phpunit all	4m 6s
ci / 8.3 mysql80 phplinting	1m 50s
ci / 8.3 mysql80 endtoend root job1	7m 47s
ci / 8.4 mysql84 endtoend root job1	7m 43s
ci / 8.3 mysql80 endtoend root job2	13m 7s
ci / 8.4 mysql84 endtoend root job2	13m 14s
ci / 8.3 mysql80 js	4m 14s
ci / 8.3 mysql80 doclinting	2m 43s
ci / Dispatch tag patch release	0s
	1h 2m 0s

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