Promote the version to 0.4.0 #1317

Job	Run time
list-test-dirs	6s
list-test-dirs	6s
build-docs	43m 1s
build-docs	43m 1s
run-test (tests/script)	3m 43s
run-test (tests/script)	3m 43s
run-test (tests/utils)	3m 33s
run-test (tests/utils)	3m 33s
run-test (tests/ir)	7s
run-test (tests/ir)	5m 55s
run-test (tests/frontends)	7s
run-test (tests/frontends)	27m 19s
run-test (tests/cuda)	6m 45s
run-test (tests/cuda)	6m 45s
run-test (tests/minimal)	4m 57s
run-test (tests/minimal)	4m 57s
run-test (tests/operators)	52m 48s
run-test (tests/operators)	52m 48s
run-test (tests/models)	7s
run-test (tests/models)	16m 15s
run-test (tests/transforms)	3m 27s
run-test (tests/transforms)	3m 27s
run-test (tests/multiprocessing)	4m 57s
run-test (tests/multiprocessing)	4m 57s
run-test (tests/runtime)	5m 2s
run-test (tests/runtime)	5m 2s
run-test (tests/distributed)	3m 31s
run-test (tests/distributed)	3m 31s
run-test (tests/unit_tests)	30m 42s
run-test (tests/unit_tests)	30m 42s
run-test (tests/lang)	7s
run-test (tests/lang)	1h 4m 52s
run-test (tests/apps)	25m 3s
run-test (tests/apps)	25m 3s
Pass All Functional Tests	1s
Pass All Functional Tests	1s
	8h 10m 1s

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