API Rename validator classes #713

Job	Run time
ci / Context	1s
ci / Generate matrix	25s
ci / Check governance	0s
ci / 8.3 prf-low mariadb phpunit all	3m 22s
ci / 8.3 mysql80 phpunit all	3m 53s
ci / 8.4 mysql84 phpunit all	3m 31s
ci / 8.3 mysql80 phplinting	1m 51s
ci / 8.3 mysql80 endtoend root job1	8m 27s
ci / 8.4 mysql84 endtoend root job1	8m 46s
ci / 8.3 mysql80 endtoend root job2	13m 8s
ci / 8.4 mysql84 endtoend root job2	14m 9s
ci / 8.3 mysql80 js	4m 18s
ci / 8.3 mysql80 doclinting	2m 54s
ci / Dispatch tag patch release	0s
	1h 4m 45s

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