ENH Suppress deprecation notices for API we can't avoid #759

Job	Run time
CI / Context	1s
CI / Generate matrix	19s
CI / Check governance	0s
CI / 8.1 prf-low mysql57 phpunit all	4m 10s
CI / 8.2 mariadb phpunit all	3m 34s
CI / 8.3 mysql80 phpunit all	4m 10s
CI / 8.1 mysql57 phplinting	1m 55s
CI / 8.1 mysql57 endtoend root	4m 47s
CI / 8.3 mysql80 endtoend root	4m 41s
CI / 8.1 mysql57 js	4m 2s
CI / 8.1 mysql57 doclinting	2m 42s
CI / Dispatch tag patch release	0s
	30m 21s

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