Set ulimit for AWS mode #2078

Job	Run time
docker-targets-build (${{ matrix.platform.platform }})	0s
check	5m 27s
build	7m 35s
cli-tests	11m 57s
integration-tests	11m 51s
sharding-tests	10m 31s
unit-tests	9m 34s
worker-tests-group1	3m 43s
worker-tests-group2	4m 28s
worker-tests-group3	4m 0s
worker-tests-group4	3m 59s
worker-tests-group5	3m 56s
docker-publish	0s
publish	0s
	1h 17m 1s

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