API Update API to reflect changes in silverstripe/framework #1150

Job	Run time
CI / Generate matrix	14s
CI / Context	1s
CI / 8.3 prf-low mariadb phpunit all	3m 2s
CI / Check governance	0s
CI / 8.3 mysql80 phpunit all	3m 7s
CI / 8.3 mysql84 phpunit all	3m 6s
CI / 8.3 mysql80 phplinting	1m 51s
CI / 8.3 mysql80 endtoend root job1	22m 48s
CI / 8.3 mysql80 endtoend root job2	15m 53s
CI / 8.3 mysql80 endtoend root job3	13m 57s
CI / 8.3 mysql80 endtoend root job4	19m 40s
CI / 8.3 mysql80 endtoend root job5	12m 38s
CI / 8.3 mysql80 endtoend root job6	19m 2s
CI / 8.3 mysql80 endtoend root job7	28m 58s
CI / 8.3 mysql80 js	4m 18s
CI / 8.3 mysql80 doclinting	2m 30s
CI / Dispatch tag patch release	0s
	2h 31m 5s

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