Add env node in task config. #51

Job	Run time
setup-matrix	17s
test (ubuntu-latest, accounting)	1m 58s
test (ubuntu-latest, auth)	3m 7s
test (ubuntu-latest, b2b)	6m 31s
test (ubuntu-latest, dialog)	3m 22s
test (ubuntu-latest, permissions)	1m 17s
test (ubuntu-latest, presence)	1m 6s
test (ubuntu-latest, record-route)	56s
test (ubuntu-latest, registration)	5m 22s
test (ubuntu-latest, startup)	1m 41s
test (ubuntu-latest, stir-shaken)	5m 22s
test (ubuntu-latest, topology-hiding)	3m 23s
test (ubuntu-latest, uac-auth)	2m 55s
	37m 17s

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