fix(clients): processingTimeMS should be optional #26582

Job	Run time
setup	53s
notification	7s
specs	1m 5s
scripts	0s
client [email protected] macos	6m 2s
client [email protected]	8m 34s
client [email protected] linux	3m 52s
client [email protected]	4m 40s
client [email protected]	3m 57s
client java@8	4m 23s
client [email protected]	6m 24s
client [email protected]	4m 43s
client [email protected]	10m 18s
client java@17	4m 38s
client java@11	4m 9s
client java@21	4m 18s
client [email protected]	5m 3s
client [email protected]	11m 52s
client [email protected]	9m 3s
client [email protected]	3m 52s
client [email protected]	5m 5s
client [email protected]	5m 28s
client [email protected]	5m 12s
client [email protected]	5m 12s
codegen	2m 9s
check_green	3s
push_and_release	0s
	2h 1m 2s

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