Attempt to make CI test running more stable #4565

Job	Run time
integration-tests	21m 44s
build-and-test	16m 43s
docker-targets-build (${{ matrix.platform.platform }})	0s
cli-tests	16m 24s
Publish binaries of ${{ matrix.project }}	0s
sharding-tests	11m 53s
wasm-rpc-stub	3m 13s
worker-tests-group1	10m 44s
docker-publish	0s
worker-tests-group2	3m 55s
worker-tests-group3	5m 2s
worker-tests-group4	5m 2s
worker-tests-group5	9m 5s
worker-tests-group6	17m 19s
worker-tests-group7	6m 45s
worker-tests-group8	13m 22s
publish	0s
publish-slack-notification	0s
	2h 21m 11s

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